Welby rhymes with:
kelby, melby, selby, shelby, albie, appleby, bailby, balbi, bielby, bilby, bowlby, colby, dalbey, dalby, dolby, filby, gilbey, gilby, huckelby, kelby, kilby, melby, milby, nickleby, philby, selby, shelby, trilby, walby
Welby sounds like:
walby, wallaby, wallop, walp, welp, willapa, wolf, wolfe, wolff, wolpe, woolf, woulfe, wulf, wulff