[Bkrum]

I am preparing to tackle my long forgotten collection of autographs that I accumulated primarily via mail in the late 70s-early 80s. Most are on cards although there are some 3x5, cuts, 8x10s, etc. I also purchased some collections in that era so there is really a wide collection of stuff. HOF players are fairly easy to track but who are some of the more collectible, rare, non-HOF players from the post war era? Is there a website, price guide, collector forum, etc that I could dive into to learn more?
Also I'm surprised to learn it seems there is a market for "vintage" autographs with a standard ballpoint pen as opposed to the more modern Sharpies. And autographed baseball cards are less frowned upon that they used to be. Interesting stuff