Same here: thin(and thinning), fine hair that's prone to bedhead and hat hair, and a big lumpy noggin. A cap with any kind of crown makes me look even goofier than usual. Academy has/had some of their cheap caps with a fitted top and somewhat pre-rolled brim that are super comfortable but not fully "tactical", though I admit to cutting the buttons off most of my caps these days.
I'm actually looking forward to a few years from now, when my hair is gone enough to shave it all off and hat head will be a thing of the past. For now there's just enough to keep the sun off so it stays.