anything will jump if they want to. As far as small fish I've kept lyretail anthias, ignitus athias, midas blenny, lawnmower blenny, spotted hawkfish sixline wrasse and royal grammas with open top. None have ever jumped. Just about all known to commonly leap out of open tops. I keep my aquascaping and aggression low, flow high up top but your going to have to take some chances or put some sort of cover on (I refuse, too many benefits of open top).
fish that are extremely prone to jumping that I've avoided are jawfish, firefish/dartfish, sleeper goby's, flasher/fairy wrasses, peppermint and twinspot hogfish and chalk bass