Orion rhymes with:
brian, brion, bryan, bryen, bryon, cryan, mcbrien, nvryan, o'brian, o'bryan, obrian, obryan, rion, ryan, ryen, ryon, tryon
Orion sounds like:
o'hearn, o'hern, o'herron, ohearn, ohern, oherron, oram, oran, orem, oren, oriana, orin, orman, orme, orn, orna, orne, orona, orran, orren, orrin, orum