Schoolbooks rhymes with:
checkbooks, cookbook's, cookbooks, guidebooks, handbooks, jokebooks, matchbooks, notebooks, overbooks, passbooks, pocketbooks, scrapbooks, sketchbooks, storybooks, textbooks, waldenbooks, waldenbooks', yearbooks
Schoolbooks sounds like:
sailfish, salopek, salvage, salvaggio, salvas, salves, salvi's, salvos, salvucci, scallops, scalps, schlabach, schoolbook, schoolboys, schoolbus, schulhaufs, schwalbach, seawolf's, seelbach, self's, selfish, selfs, selloffs, selvage, selvaggio, selves, selvig, shelby's, shellfish, shelves, silbaugh, silfies, silva's, silvas, silvis, silvius, slabaugh, slabs, slaps, slaves, slavic, slavick, slavik, slavish, slavs, slayback, slaybaugh, sleeps, sleeves, slifka, slifko, slippage, slips, slivka, slobs, slopes, slovacek, slovak, slovakia, slovakia's, slovaks, sloves, slowpoke, slupic, solves, solvig, syllabic, syllabus, sylvia's, sylvio's