Nighter rhymes with:
overnighter, schneiter, beiter, biter, brighter, deiter, ex-fighter, fighter, kreiter, leiter, lighter, lyter, miter, overnighter, pitre, reiter, reitter, righter, riter, schneiter, schreiter, seiter, seitter, sluyter, slyter, tighter, whiter, writer, zeiter
Nighter sounds like:
nastier, nectar, negotiator, nester, nestor, neumeister, newscaster, nicastro, nichter, nicotera, nicotra, non-sequitor, nostra