PLA to do the prototype. Then most likely TPU. But suggest to practice on smaller models first as 3d printing is art on its own that needs mastering before printing critical elements.
Well you probably have an overwhelming number of options on craftcloud.
I’ve printed mine in PETG+, that’s a rather basic material but it’s held up fine. It’s not as susceptible to UV damage as PLA (which you should avoid). It’s probably one of the cheaper alternatives.
I would also consider nylon or one of the carbon fiber reinforced plastics.
You could also look for SLS or MJF options. This is a different type of power/laser based printing that home machines don’t use. It makes very strong and robust parts, usually with nylon. Probably a bit pricier than “normal” filament based prints.
@Foilkook If you want cost effectiveness, it would be much better to have someone here print your parts–the online prices are insane. I could probably print you a carbon fiber nylon part for the same price that Craftcloud is charging for a plain PLA part. (If you’re interested I have PLA+, PETG, TPU, and PA6-CF at the moment.)
Of course if you want things like SLS or you don’t live in a country near anybody here then a service would be better!