Welborn rhymes with:
welborne, melbourne, melburn, shelburne, welborne, ahlborn, albern, colbern, colburn, hilborn, hilburn, kilborn, kilbourn, kilbourne, kilburn, melbourne, melburn, millburn, shelburne, walborn, walburn, welborne, wilborn, wilbourn, wilbourne, wilburn
Welborn sounds like:
walborn, walburn, welborne, wellborn, wilborn, wilbourn, wilbourne, wilburn, wolfram, wolfrom, wolfrum, wolverine