Campion rhymes with:
champion, champion, olympian, appian, caspian, champion, ethiopian, fallopian, hagopian, homosapien, hovsepian, mississippian, olympian, rippeon, scorpion, slepian, stepien, thespian, utopian
Campion sounds like:
campana, campen, campione, campopiano, canavan, cannavino, chambon, champine, champion, champney, chombiono, cinnabon, cnnfn, combine, companhia, compania, companion, companionway, company, compean, confine, convene