THESAURUS
rooter
adherent, admirer, amateur, applauder, appreciator, booster, buff, claqueur, collector, commender, devotee, dilettante, encomiast, eulogist, eulogizer, extoller, fan, fancier, follower, groupie, idolater, idolizer, lauder, panegyrist, plugger, praiser, promoter, puffer, tout, touter, votary, worshiper