Ensource rhymes with:
outsource, sorce, source, borse, bourse, coarse, corse, course, divorce, endorse, enforce, force, forse, gift-horse, hoarse, horse, laforce, midcourse, morse, morss, norse, nourse, outsource, perforce, reinforce, remorse, sorce, source, vorce
Ensource sounds like:
emigres, emissaries, encor's, encores, encourage, encourages, encroach, encroaches, engross, enserch, ensures