Saipan's rhymes with:
aspen's, aspens, cheapens, coppens, deepens, happens, lippens, opens, oppens, pippen's, reopens, sharpens, tippens, weapon's, weapons, weapons', yaupons
Saipan's sounds like:
sabine's, sabins, safing, sapanski, sapiens, sapienza, sapping, savannas, savin's, saving, savings, savings', savings's, saxophones, scavenge, scooping, scoping, sczepanski, seeping, seven's, sevens, shaping, shaving, shavings, shipping, shobana's, shobanna's, shopping, shopping's, shoving, shuping, sieving, siphoning, siphons, sipping, skibinski, skipping, skyhopping, sobbing, sofians, sopping, soybeans, spain's, span's, spang, spanish, spank, spanky, spanning, spanos, spans, spawning, spawns, spence, spens, spewing, sphinx, spiffing, spinach, spines, spink, spinks, spinks's, spinning, spinosa, spinoza, spins, spong, sponge, sponges, spongy, spoofing, spoons, spunk, spunky, spying, subbing, subpoenaing, subpoenas, supinski, suspense, svensk, svenska, swapping, sweeping, swiping, swooping, sypniewski, szczepaniak, szczepanik, szczepanski