need help with finding wedding band (ring)

i want a band that will sit flush next to my e-ring with no gaps...so ive been looking at the rings with a curve...

but then i thought that i would also like to wear the band separately if i wanted....and if i got the curve ring that would just look stupid!!

any ideas on what kind of ring to go for?

i can get something designed, but i need an idea in mind. and, well, i have none....