32 of them! see all the teams, the contestants, and the fandoms below. i likely won't be including who's in the teams in the polls due to character limits, but the fandoms will be there. if you want to suggest better team names, my askbox is open!
x-laws (shaman king) consists of lyserg diethel and iron maiden jeanne
every eliotrope (dofus and wakfu)
team savior (savior) consists of seyeon, wohn, and juyi
raistlin majere (dragonlance)
marie korbel (skullgirls)
hitori uzune (hatoful boyfriend)
team blaseball (blaseball) consists of jaylen hotdogfingers, parker macmillan, and also every single blaseball character!
team dragon quest (dragon quest 9) consists of everyone especially the unnamed protagonist
owen carvour (spies are forever)
fai flourite (tsubasa reservoir)
artorin damara (the hands of the emperor)
tanya von degurechaff (the saga of tanya the evil)
dio (virtue’s last reward)
nimay (queer dungeoneers)
mark heathcliff (the mandela catalogue)
renarin kholin (the stormlight archives)
the sanshuu middle school hero club (yuuki yuuna is a hero & washio sumi is a hero) consists of yuuki yuuna, tougou mimori, inubouzaki fuu, inubouzaki itsuki, and miyoshi karin
tsubaki kasugano (mirai nikki/future diary)
neku sakuraba (the world ends with you)
team abc’s lost (abc’s lost) consists of richard alpert, benjamin linus, and john locke
mad rat (mad rat dead)
velvet crowe (tales of berseria)
doomguy (doom series)
maelgwyn (friends at the table)
guren squad (owari no seraph) consists of ichinose guren, hiiragi shinya, goshi norito, juujou mito, hanayori sayuri, and yukimi shigure
sinbad (magi: the labyrinth)
cale henituse (lout of the count’s family/trash oh the count’s family)
elder kevin price (the book of mormon musical)
merle highchurch (the adventure zone)
team oc (brain) consists of salty, thorax, arden chimestock, and vandium! if you created any of these four, respond to this post letting me know so i can easily keep track