Power bait
IT depends on what you are fishing for trout, carp,and many more but the best bait is bread so farm trout think it is pellets they are fed or boilies for large carp
blood worms during the day and sardines at night
its a type of bait to catch fish that are shaped like balls hence the name bait balls... i think... ;)
worms, maggots, lures, squid