Yes there are, but who they are would have to have an in-person meeting to decide. Chemistry can be a powerful force and surprise us as to who it's with when that happens. So, one might find that they wouldn't have sex with some they think they would, and would have sex with some they think that they wouldn't, if they met in person.
However, there are not many I'll ever have the chance to meet in person. And there are many who have made it too far into the friend zone for there to be a chance even if we met in person. Once I think of a man as a brother, there's no chance for chemistry.
