16x8 concave on a 98 honda civic ek hatch, +20 offset or +10 offset? best tire size?

 

+36 but that’s not one of your options. So pick the one that’s closest to that.

225/40r16 but no one makes that size. So 205/45r16 is the most correct size.

Expect to roll and pull all four fenders at that offset.

Don’t run retarded camber. The word ‘retarded’ is offensive, that’s why I used it.