Through virtue of sheer probability, probably lots? I’m bound to be wrong about some stuff, and figuring out whether my guesses are grounded or baseless is part of the fun.
Do I have headcanons that are just for fun, because I find them appealing, with absolutely no aims to speculate with regards to how they fit in canon? Sure.
I prefer to keep them to myself more often than not, though. Not cause there’s anything wrong with sharing them–I just keep really busy talking about canon stuff. And it’d be likely to make things more confusing.
Flying through Storytelling 