Welser rhymes with:
belser, elser, helser, selsor, smelcer, smelser, balcer, balser, belser, bolser, elser, helser, overholser, pulsar, salser, selsor, smelcer, smelser, sulcer, sulser, ulcer
Welser sounds like:
walcher, waligora, walizer, walker, walkure, walser, walzer, welcher, welker, wheelchair, wilcher, wilker, wilshire, wollaeger, wuliger