Otten rhymes with:
botten, cotten, cotton, forgotten, gotten, groton, guncotton, misbegotten, rotten, scotten, scotton, totten, totton, trotten, wotton
Otten sounds like:
o'donohue, oatman, odden, odem, oden, odeon, odiaum, odiaun, odin, odom, odonohue, odum, ooten, otani, othman, ottman, ottoman, ottum, outdone, outen, outman, outten