Topple rhymes with:
stoppel, coppel, copple, hoppel, hopple, koppel, koppell, kopple, oppel, poppell, popple, stoppel
Topple sounds like:
table, tableau, tadpole, tafel, taffel, tafolla, tapley, tavel, teeple, teply, teufel, theophila, tidball, tipple, tivoli, topel, topol, tubal, tubule, tupelo, tuvalu, typeable