they should bring someone from STAYC because they are only rookie GG which is in Music Bank Chile line-up
overall the only other GG in line up is (G)I-DLE but I don't think free members are interested into MCing, and Miyeon already has a gig in M Countdown so that would be weird
agreed with StayC!!
or someone from fromis_9 could also works (I forget which one of them that had an MC gig before)