Trying to blend genres. Is there any possible way?
This is my first post so it'll probably be ignored but I am definitely looking for any guidance I can find.
So I want to do a 5e sci-fi, high fantasy campaign where space faring folk stumble across a planet that has not developed into a Civ 1 planet but have made first contact and now sci-fi and fantasy can blend. I know that there's a lot of sci-fi themed games like starfinder and traveller but I want to also incorporate the classes of high fantasy too.
Is there any way to integrate sci-fi and high fantasy systems into one system like 5e? I doubt there is an extension that works for FGU but since I already have SF, 5e, and PF and PF2E, is it even possible to import and marry some of these aspects without spending hundreds of hours on copying and pasting information over to another system?
Any and all help is appreciated in advance.
Happy gaming!