Symbiotic rhymes with:
antibiotic, antibiotic, idiotic, patriotic, semiotic, unpatriotic, antibiotic, aquatic, astronautic, chaotic, despotic, erotic, exotic, hypnotic, idiotic, narcotic, neurotic, patriotic, psychotic, quixotic, robotic, semiotic, unpatriotic
Symbiotic sounds like:
snippets, somebody's, sumptuous, sympathetic, sympathies, sympathize, sympathizes, synbiotics, synoptic, synoptics