Ersatz rhymes with:
aeroflot's, afterthoughts, apricots, aquanauts, astronaut's, boycotts, crackpots, croat's, croats, feedlots, gunshots, hot-shots, hotshots, huguenots, jackpots, kilowatts, mascots, megawatts, ocelot's, oviatt's, potshots, robot's, robots, slingshots, snapshots, sunspots
Ersatz sounds like:
erastus, erects, ergot's, ergots