Sharking rhymes with:
barking, embarking, harking, marking, parking, remarking, sparking, barking, corking, earmarking, embarking, forking, harking, marking, millworking, parking, remarking, sparking
Sharking sounds like:
saracens, scorching, scourging, screeching, scroggins, searching, seriousness, shearson's, shirking, shrieking, shrugging, sourcing, surgeon's, surgeons, surgeons', surging