Happier rhymes with:
frappier, nappier, copier, dampier, frappier, grumpier, lapier, napier, nappier, photocopier, rapier, skimpier, sloppier
Happier sounds like:
haber, haberer, hafer, hauber, haufer, hauver, haver, havier, hawver, heavier, heber, heberer, hebrew, heifer, hepfer, hepper, heyboer, hibor, hieber, hipper, hoefer, hoeper, hofbauer, hofer, hoffer, hoffpauir, hooper, hoover, hopfer, hopper, hover, however, huber, hubor, hueber, hufbauer, huffer, hupfer, hyper