Haldan rhymes with:
smaldone, alden, beholden, belden, beldon, bolden, boldon, colden, elden, embolden, fielden, folden, gilden, gildon, golden, halden, haselden, hilden, holden, kolden, malden, maulden, mauldin, meldon, molden, moulden, nolden, olden, paldon, roldan, selden, seldon, shelden, sheldon, smaldone, soldan, tilden, vandervelden, volden, walden, waldon, welden, weldon, wheeldon, whilden, wilden, wildon, willden, wimbledon, wolden
Haldan sounds like:
haldana, haldeman, halden, halteman, haltom, halton, healthdyne, heldman, helton, hilden, hildum, hilton, hiltunen, holdeman, holden, holdman, holtan, holten, holtman, holtmann, holton, houlton, hultman, hulton, hylton