Sunburn rhymes with:
kinburn, winburn, arterburn, bradburn, camburn, clayburn, cockburn, cogburn, eastburn, fairburn, fishburn, freeburn, glassburn, heartburn, kinburn, marshburn, mashburn, milburn, newburn, osburn, pangburn, redburn, washburn, washburne, winburn, woodburn
Sunburn sounds like:
sambrano, san-fran, sanborn, schimberni, schoenborn, sigmaform, sonneborn