Yes PLA + and PETG are both very good options! I used PLA+ for my helmet.
Now my suit is all foam besides the helmet, so I can't weight in on which is better for a whole suit. Here is a thread from 2022 about different types of filament with thought from people who print their whole suits:
Hey guys/gals/dudes. What is the best filament you guys are using for your prints? I’m currently using overture eco-PLA black. Is there a better one I should be using? Or is it just preference?
www.405th.com