I love these designs! Would it be possible to share the supported files that you printed in your video? I appreciate that the particular supports may not work with my printer, but it would be a real help to see what you've supported. Thanks.
Honestly, I just use auto light supports in Lychee, after tilting the houses so that there's no edges printing flat. I generally add one heavy support per model to act as a sort of main anchor sometimes, if its a bigger piece.