Arkin rhymes with:
barkin, clarkin, harkin, larkin, markin, parkin, barkin, clarkin, dworkin, harkin, larkin, markin, orkin, parkin, sorkin, sporkin, zorkin
Arkin sounds like:
aragon, aragona, arcana, arcane, arcanum, archenemy, argon, argonne, arisen, arison, arizona, arizonan, arraign, arreguin, arrigoni, arseneau, arsenio, arson, arzama