Gundlach rhymes with:
hadlock, medlock, sedlack, sedlak, sedlock, tadlock, belak, bielak, blalack, blaylock, bulloch, bullock, bulluck, cablec, cheslock, cieslak, debelak, deblock, dolak, dulak, garlock, gavlak, gerlach, gerlock, gillock, glycolic, hadlock, hallock, hillock, hurlock, kinloch, knobloch, krolak, malak, malloch, mccolloch, mcculloch, medlock, mikulak, molock, morlock, mukluk, narlock, oblak, paluch, paluck, pavlak, pavlock, pawlak, pawluk, philatelic, podolak, polak, pollack, pollak, pollock, pollok, republic, salak, schallock, scurlock, sedlack, sedlak, sedlock, smartaleck, smolak, solak, sulak, tadlock, trulock, truluck, tulloch, tullock, ullock, uzelac, wallach, wallack, walloch, willock, wolak, wollack, zapalac, zawislak
Gundlach sounds like:
genitals, gentile's, gentiles, gentles, gondolas, gunatilake