Pekoms and Tamago are probably strong members, but not the top elite, it'd be ridiculous to think there fodder, there probably the beggining of her amazing subordinates
my Guess is the Yonkou always have around 8 extremely capable subordinates, we saw Shanks has 8 main members and Black Beard has 9 main members… and stronger, and then they probably have loads of fodder and capable ally captains
Oda gave whitebeard double this amount (16), probably to show his superiority
of course there isn't much to back this up it just seems odd that BB and shanks have 8 members that face off well against each other (and then Sanjuan wolf who probs will be used to hype shanks up when there inevitable fight occurs) and then white beard has exactly double that amount... hell even doflamingo has 8 guys... or nine if you include CC
EDIT: so what I was getting at was that pekoms and tamago would be like the nami, usopp chopper of the 8, and the three eyed girl and bobin would be part of the monster trio, with more members to come
and I don't expect the straw hats to beat them thereslves, my guess is they'll team up with the super novas to beat them, and possibly doflamingo's crew will get thrown in there somehow (if they don't fight them before)