Nikolai rhymes with:
nicolae, nicolae, nicolae, nicolae, alkali, alveoli, botfly, butterfly, eagleye, firefly, gadfly, hoverfly, lorelei, maglaj, multiply, nicolae, seelye, shoofly, stimuli, walleye
Nikolai sounds like:
naegele, naegeli, nagel, nagele, nagle, nangle, nasal, nasally, naugle, neagle, necula, negley, neglia, nessel, neuzil, newsweekly, niccoli, nicely, nichol, nichola, nichole, nicholi, nicholl, nickel, nickell, nickle, nicklow, nickol, nicley, nicol, nicola, nicolae, nicolai, nicolau, nicolay, nicole, nicoli, nicoll, nicolle, nicolo, nigel, niguel, nikkel, nikola, nisley, nissley, nocella, noggle, nogle, noisily, nosal, noxell, nozzle, nuclei, nussle, nuxoll, nuzzle