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4 segments

S1: Anal Positions
S2: Perching Position
S3: Against Wall vaginal entry position recommendations
S4: Final statement

Segment 1: Anal Positions

If anything the positions done in vaginal that are in game can also be done anally if you want to go that route like the "Prison Gaurd" position that's already in game, but that could mean even more work for animations. Here are some positions for anal.

Jockey Position - The receiver lays down on their front (or pushed down in game) and the penetrator kneels over the receiver almost crouched like, if you want you could include having the penetrators hands push down on the receivers back keeping them pinned. One thing to note it is up to you to choose any one of the positions i'm going to mention that are similar to this position only they're steeper. They're the "Speed Bump" , "Leapfrog" and "Rear Admiral" positions. The " Speed Bump " (lvl1)  is the lowest where the penetrator lies down on the receiver pinning them using their body. (Great for breeding / Anal). The " Jockey " is (lvl2) only the penetrator is kneeling over their partner. The " Leapfrog " (lvl3) is where the receiver raises up their bottom and the penetrator is on their knees upright.

Then the " Rear Admiral" (lvl4) is where the penetrator stands completely on their feet while the receiver laying their upper body down still front facing, lifts their behind further upwards almost doing a "Jack - O" like pose, they don't have to spread their legs but you can let that happen if you want.

Full Nelson - A wrestling move initially, the penetrator approaches the receiver from behind and circles their arms under the receivers armpits with the elbows of the penetrator close to the sides / obliques of the receiver to prevent escape while meeting their hands to the back of the receivers head rendering the receiver restrained. (at least how I've seen it)  Although it is dependent on the size, strength, muscle mass, technique, and especially height of the penetrator, the elbows could be more flared out or tucked in same with the arm placement of the penetrator as long as it serves the purpose of restraining. A shorter penetrator would have trouble attaining this so a penetrator of equal height or bigger than the medium female will do this more easily.  

It can also be done with the rear side of the receivers knees locked up, same thing as done with the arms of the receiver only now their legs are lifted off the floor into the air with the penetrator locking their hands together behind the receivers head or neck. 

IF you want to go further, this position can be done lying down, the penetrator is lying on their back with the arms or legs of the receiver restrained, the penetrator may leg lock the receivers lower half by crossing their legs on the receivers abdomen or if you want don't let that happen and just let the arms or knees of the receiver be restrained. (In some cases known as the "Quarter Nelson" one of the variants of the " Nelson Holds ") . Again, can be done Anal or Vaginal or other genders involved.

(I rarely watch wrestling so quote me on this if I mentioned anything wrong here)

Reference (From e621): 
(WARNING: NSFW) Nelson Hold on the ground (WARNING: NSFW
(WARNING NSFW - M/M) Full Nelson on the ground without leglock (WARNING NSFW - M/M)

Clip studio - I wouldn't click on the links personally, ran it through Virus total scanner says its clean but there were a lot of unknown blanks so just click "Yes" to see the image and that's it.
(NSFW) A Nelson hold standing (NSFW) - No need to click if you understand at this point

Piledriver Position -  The receiver is lying down on their back, neck down, but their lower body is upwards facing upwards with the receivers legs almost head over heels. The penetrator would crouch slightly to meet the Anal cavity or the vagina and penetrate downwards. I admit this is a tough position for the penetrator especially and also to animate but it's another position.

Segment 2: Perching Position

- - -There were extra vaginal positions I was going to put, but I'll put one of them here. if you need any "Against Wall" vaginal I could offer a few positions after this segment:

Perching Position (Meant for short males e.g. Kobolds) - Good for short enemy males who want to overpower the receiver whether big or medium sized females, the penetrator mounts the receiver using the receivers legs or rear end / hips as support for their feet, then penetrates the receiver while holding onto them. 
It's a little tough to explain but, in short imagine the "Stand and Carry" position but the male who is much shorter  climbed up the females legs and latched onto the females abdominals area like glue with their face buried in the females breasts, or lower back area while she is standing up almost piggy backing her. I'll even put a reference image since, this position can be done standing whether rear lower back area or front abdominals on the female, or more normally seen, with the female on the ground.  (This can be done anal as well as vaginal)

(WARNING NSFW) An example of the "Perching" position, more can be found at the question mark further down the tags.

(NSFW) Perching Example 2 (NSFW)

- - The links lead to e621 if concerned.

Segment 3: Against Wall Positions - Vaginal Entry

" Against Wall Position " recommendations, many of them can even be done Anal too: 

Ballerina Position / Split Dancer: The receiver does a vertical split but their leg can rest on the penetrators shoulder while the penetrator can hold onto the receivers abdominal area for added balance or the receiver can be up against a wall.

Bodyguard Position: A rear entry sex position but can change. The receiver and penetrator both stand and have intercourse while the receiver is pinned to the wall by the penetrator, penetrator can either be up close to the receivers back looming over them or keep a short distance and hold onto the receivers behind, the hand placement of the receiver and penetrator could be anywhere, receiver could be on one leg, receiver and penetrator could be facing each other. Receiver could even be carried,  it's pretty flexible so I'll let you handle that.

Sitting Table Lotus: Pretty much a regular " Table Lotus " position only the receiver is sitting down against a wall with their waist pointing outwards towards the penetrator (Almost forming a " C " shape with their back against the wall) while the penetrator kneels down to meet them face to face, the receiver can be pinned to the wall with any method whether by forcing their hands above their head, or something else. Position can be done anywhere near a wall.

Segment 4: Final Statement

I don't have anything for oral so far, but I could look around and get back to you. These positions, you choose which you think can work to your best judgement, share it with your supporters if you like, I'm just a bystander following the game. I tried giving you as much info as I could on these so maybe you can make use of them.