I think submarines would be an awesome thing to have for those ocean planets or airplanes to travel faster on one planet if you just want to go somewhere fast maybe even take your spaceship to the surface
To add onto this, why not be able to tame certain creatures that are native to the planet you live on, be able to use them as natural mounts, and in turn, be able to use the monster's moves instead of the artillery of other mounts like mechs?
