Regarding rhymes with:
disregarding, guarding, bombarding, discarding, disregarding, guarding, harding, retarding, according, affording, awarding, boarding, bombarding, checkerboarding, cording, discarding, disregarding, guarding, harding, hoarding, recording, retarding, rewarding, safeguarding, skateboarding, warding
Regarding sounds like:
reasserting, recording, recordings, recreating, recruiting, regretting, resorting