Yep rhymes with:
boztepe, cep, dep, depp, deppe, epp, hep, hepp, heppe, kepp, kleppe, knepp, lep, lepp, misstep, ngueppe, pep, prep, rep, repp, schepp, schlepp, schnepp, schweppe, sep, sepp, shep, shepp, step, stepp, steppe, strep, zepp
Yep sounds like:
yabba, yaffe, yap, yapp, yip, yippee, yoffie, yopp, you've, yuba, yup, yuppie, yuppify