Another question; which one of the three you think attract more people?
visual novel probably, since it's a video game. better yet, if it has a good gameplay like sengoku rance.
if you add lewd things, it might attract even more. plus points if it's for a particular fetish that's done well.
TLDR : No good yuri and futanari VNs, just like indies do games because big companies badly do them.
sono hanabira's kinda mid for me, aside from mai x reo which was quite decent.
try aoishiro, kindred spirits on the roof, nurse love addiction and flowers series. i did find quite a number of decent to good yuri vn out there.
as for a good futanari novel, i only found and played rondo duo yoake no fortisimo punyu puri.
i did find some nice stuff when it come to lewd rpgmaker games. like eileen curse of futanari succubus and its sequel.
there's also succubus tamer and lilith in nightmare, but it's not really a futanari game. you can just play as either male or futanari.
you can try looking up in lewdzone with futa/trans protagonist tag for that. they're pretty niche even though they had so much potential. you might find a hidden gem there.