Spiker rhymes with:
speicher, spyker, piker, speicher, spyker, aicher, biker, bleicher, byker, eicher, hiker, keicher, kiker, kreicher, kyker, leiker, piker, reicher, riker, ryker, schleicher, sliker, speicher, spyker, streicher, streiker, striker, stryker, teicher, weicker, weiker, wiker
Spiker sounds like:
savagery, schabacker, siefker, spacer, speaker, specker, speicher, speiser, spicer, spicher, spieker, spizzirri, spyker, subzero, svizzera