Surging rhymes with:
resurging, converging, diverging, emerging, merging, purging, resurging, scourging, splurging, urging, verging
Surging sounds like:
saracens, scorching, scourging, screeching, scroggins, searching, seriousness, sharking, shearson's, shirking, shrieking, shrugging, sourcing, surgeon's, surgeons, surgeons'