Necromancer rhymes with:
financer, freelancer, raindancer, advancer, announcer, answer, anticancer, balancer, biosensor, bonser, bouncer, brinser, cancer, censer, censor, condenser, conser, cosponsor, dancer, danser, denser, dispenser, enhancer, ensor, financer, freelancer, ganser, gonser, hanser, kincer, kinser, lancer, lanser, licenser, licensor, manser, mansour, mansur, mencer, menser, mincer, monsour, pancer, prancer, raindancer, sensor, spencer, spenser, sponsor, unser, zinser