I'm not sure exactly where to post this question but I figured maybe customizers might have a good idea? I'm trying to find a type of action figure so I can customize it into a character from a game but I don't know how to look up what figure to buy, in other words I'm trying to find out if there is a way I can search out a body type, face type, etc. I'm trying to find something to use to make Chief Irons from resident evil 2, maybe if there isn't a search engine maybe someone here would have an idea of something i could use? Any help is appreciated

What scale are you looking for? If you're going for 1/10 or 1/12, you could look into Diamond Select. They have several different figures they've done with plain clothes suits and stuff. Off the top of my head, I can't think of any chubby enough, though.

I'm thinking something like a 6" sized figure, something that matches up size wise with older resident evil toy biz stuff

I did see a figure from Westworld today by Diamond Select. He seems shorter than most of their figures. It's of whatever character Anthony Hopkins plays. He's wearing a vest and a little more portly, so it may work for the body.