Just from the top of my head...
LittleJem - She does lingerie sets on patreon and she had a OF for a very short period, but her sets have always been very tame, unlikely that we will get anything more
itscandycloud - another one with patreon but weak sets, i little bit of hope but not very likely
himee.lily - Patreon again, she does swimsuit sets pretty often bc she knows they sell, but doesn't want to go full lewd, i can see her changing her mind in the future, but unlikely any time soon
helenstifler - Used to have a Patreon, made some pretty nice sets but stopped bc she didn't enjoy making them. I rly wish she came back but is not going to happen
- One of the best cosplayers i have ever seen and Madikat's sister, i find very unlikely but who knows, maybe a one time collab with her sister can happen.