Tancredo rhymes with:
credo, alfredo, credo, figueredo, goffredo, loffredo, loredo, manfredo, paredo, acevedo, alfredo, azevedo, bastedo, caicedo, canedo, credo, daido, dedo, escobedo, figueiredo, figueredo, goffredo, ileto, laredo, ledo, loffredo, loredo, macedo, manfredo, olmedo, oviedo, paredo, pinedo, quevedo, robledo, sado, salcedo, saucedo, shiseido, wilfredo
Tancredo sounds like:
tancredi, tangredi, tankard, tinkered