Hearten rhymes with:
harten, harton, barten, barton, carton, darton, garten, garton, harten, harton, marten, martin, marton, mccartan, mccarten, mccartin, mcmartin, parten, parton, smarten, spartan, tartan
Hearten sounds like:
haradim, hardeman, harden, hardiman, hardimon, hardin, hardman, hardwin, hardymon, harten, hartin, hartman, hartmann, hartney, harton, herdman, hiradin, horatian, horten, hortman, horton, howerton, hurdman