I mean there's always potentially rogaine and a bunch of other products that are supposed to help prevent hair loss, but I don't really know whether or not they work very well, or would work for a hair transplant.

I dunno, I do think wigs are kind of underrated. I've seen cosplayers with all kinds of crazy styled anime wigs. Most middle aged white guys in a mid life kind of aesthetic grapple might either shave their head bald and try to grow out a really long beard, and wear like, reflective oakleys or pit vipers or whatever, and then the richer ones can just afford to get a hair transplant in turkey or mexico or whatever. Me personally, I think that the sick goku wig is a better approach.