Trella rhymes with:
centrella, estrella, petrella, trela, ventrella, barela, borella, cafarella, carella, centrella, chiarella, ciavarella, estrella, fiorella, grella, mazzarella, mirella, morella, muscarella, orela, panzarella, paparella, parella, parrella, pascarella, pasquarella, passarella, perrella, petrella, rella, tortorella, trela, umbrella, ventrella, venturella, zarella, zarrella, zirella
Trella sounds like:
tarallo, tarheel, tarlow, tearle, terral, terrel, terrell, terrile, terrill, there'll, therrell, thorell, thorley, thrall, thrill, thurlow, tirello, tirrell, torell, torelli, torello, torley, trail, trela, trial, trill, trillo, triola, triolo, troll, trolley, trowel, trowell, truell, trull, truly, turley, turrell, turrill, tutorial, twirl, tyrell, tyrrell