The routes for this game are the following:
-Hestia
-Eina
-Liliruca
-Harem (Lena, Samira, Aisha, Hestia, Liliruca, Haruhime)
-Haruhime
-Airmid
-Cassandra
-Artemis
There are also routeless nsfw scenes, mainly with Demeter. Some require playing some side quests, whereas others are unlocked through achievement scenes.
It doesn't matter if you like Ais or not, by picking "I like Ais" at the beginning you take the common route where the Brothel location is unlocked. It doesn't get unlocked right away since Bell won't just wake up a morning and be like "Let's slay some Amazons with my secondary dagger!", but it'll get unlocked around the time he gets his first spell and learns about Mind Down status, so much later in the story.
R35 completes all the routes, there are no new routes, that'll be for the sequel.
R36 will release on January and it'll be the final release which will refine the game's mechanics up, and add some more content, and of course the ending. You can follow the changelog for it here: https://pastebin.com/tanaPpZF
Legacy of Hestia covers only up to volume 8, the sequel will start from Volume 9 (either as a new game, or imported save) and that's where new routes will happen.