Brainer rhymes with:
braner, breighner, braner, breighner, craner, cranor, drainer, graner, kraner, rainer, rayner, raynor, trainer, trainor, traynor
Brainer sounds like:
barmore, barner, barrymore, bernauer, berner, bernheimer, bernier, boerner, borner, bramer, brammeier, brammer, braner, branner, brauner, brawner, brehmer, breiner, bremer, bremmer, bremner, brener, brenner, brimer, brimmer, briner, brinner, brommer, broner, bronner, browner, bruemmer, brumer, brummer, bruner, brunner, brymer, bryner, burner