aidmen, airmen, amen, badmen, bagmen, bailsmen, bandsmen, barmen, batmen, bellmen, ben, boatmen, bondmen, bondsmen, bowmen, brakemen, bullpen, bushmen, chainmen, chairmen, chessmen, churchmen, clansmen, coachmen, corpsmen, cowmen, craftsmen, crewmen, den, doormen, dutchmen, earthmen, fen, firemen, footmen, freemen, frenchmen, freshmen, frogmen, glen, goodmen, helmsmen, hen, henchmen, herdsmen, horsemen, housemen, huntsmen, icemen, ken, kinsmen, lawmen, linemen, linesmen, madmen, magsmen, mailmen, marksmen, men, mermen, milkmen, newsmen, nightmen, norsemen, oarsmen, peahen, pen, penmen, pigpen, pitchmen, plainsmen, playpen, plowmen, postmen, pressmen, ranchmen, rn, scotsmen, seamen, shiftmen, showmen, sidemen, snowmen, spacemen, spoilsmen, spokesmen, sportsmen, statesmen, steersmen, stockmen, strongmen, switchmen, swordsmen, tacksmen, talesmen, ten, then, tollmen, topmen, townsmen, trackmen, tradesmen, trainmen, tribesmen, truckmen, when, workmen, wren, yachtsmen, yardmen, yeggmen, yen, yeomen, zen
Yes, if you pronounce "again" to rhyme with "gain".
Them again
that again
Hannigan Flannigan can again fan again
"Mass" rhymes with grass and is related to the Earth as it represents the amount of matter in an object.
The word "what" in that sentence ("I can't what to play") makes no sense. Perhaps you mean "wait"? Please see the related question below for "What rhymes with again?"
Ten
give me a peng
no.. not really
birth
abstain stain again
Again, fin, tin