Erl rhymes with:
berle, birle, burl, curl, earl, earle, earll, girl, hearl, herl, hurl, kerl, merl, merle, nerl, pearl, pearle, perl, perle, searl, searle, shirl, sperl, swirl, twirl, unfurl, whirl, whorl, wurl
Erl sounds like:
earl, earle, earley, earlie, earll, early, eerily, erle, erly, erol, errol, eyerly