both players unknown

Not even sure what to do with my range here. I wouldn't feel happy getting shoved on by either player really but just flatcalling preflop is hard to balance too unless I'm flatting my entire continuing range.

As played what to do here? His range looks extremely strong to me, I think he could be slowplaying KK+ quite a bunch too and I again wouldn't feel great about getting it in here. Problem is that my hand is still vulnerable to AK and some other stuff if he flatted really wide preflop. b/f 1/3 pot kinda feels wrong too though.