I think it depends on your color pallet, but remember to keep function and fit at the forefront. I generally just wear black running shorts and my tops are black, navy or various shades of grey. So for me, Nike Metcons in all black work. They have some others if you want a little pop in there. The grey/white with the gum soles are interesting and have some texture without being garish.

https://www.nike.com/t/metcon-4-mens...0Vy/AH7453-001