Koby rhymes with:
cobey, coby, jacobi, jacoby, scobey, scoby, adobe, cobey, coby, doby, gobi, gobie, jacobi, jacoby, moby, nairobi, obie, okeechobee, robey, robie, roby, ryobi, scobey, scoby, sobey, sunobe, tobey, tobie, toby, zoghby
Koby sounds like:
kabbah, kabi, kaifu, kapp, kappa, kashuba, kassab, kaszuba, kaufhof, kaup, kaupp, kauppi, kayapo, kazikaev, kcop, keef, keefe, keeffe, keep, kepp, khufu, kibbe, kibbee, kibbey, kibby, kibeho, kickoff, kief, kiev, kiff, kip, kipp, kivi, koba, kobe, koep, koepp, koeppe, koff, kofi, kofu, koob, koop, kope, kopf, kopp, koppe, kopy, kosbie, kosecoff, kosiba, kosovo, kosub, kosyakov, kouba, kozub, kuba, kube, kubo, kuby