Similar word to many:

abounding, alive with, bounteous, bountiful, copious, countless, crowded, divers, frequent, innumerable, legion, lousy with, manifold, multifarious, multifold, multiplied, multitudinous, myriad, no end of, numberless, numerous, plentiful, populous, prevalent, rife, several, sundry, teeming, umpteen, uncounted, varied, various