Kangaskhan: ban.
Kanga is literally the definition of a broken mon. Its bulk is insane, it is quite fast, and just needs to spam double-edge to win games easily: CB kanga even 2hkos quagsire. Avalugg walls it, but needs to spam recover which is suboptimal outside of stall. Gorsola is the closest thing to a counter, but strength sap isnt reliable if the oppo has a mon with low atk; and since corsola needs to be at full especially vs CB kanga, you can guess it's not such a great answer. Kanga also loves spikes, and corsola/runerigus hate them. So not only kanga is a devastating wallbreaker, but it is also a deadly revengekiller thanks to fakeout+suckerpunch. Playing around kanga is just too hard, defensive and offensive counterplay dont really exist (stuff like specs jolteon can RK but it's easy to predict the electric move), and you just end up sacking mons that you need like qwilfish/runerigus/appletun/throh in order to kill it by double edge recoil/helmet recoil.
Overall, too bulky, too fast and too strong. Just ban this.

Exeggutor: do not ban.
I admit specs eggy is sometimes stupid. However I now believe there is sufficient counterplay, and most importantly, not enough opportunities for eggy to do what a broken mon like kanga would do. Eggy is slow, and the metagame is actually not so kind to it. AV perrserker and ferroseed, the common steels, limit eggy's momentum. The only rocker eggy can abuse is stunfisk, indeed runerigus has poltergeist, Gorsola can withstand its attacks and thus scout for psychic/grass moves, sandslash has knock off and eggy hates knock off. Water types? Well cramorant just outspeeds and hurricanes. Other grasses? Gourgeist, appletun and lilligant dont let eggy in. So, we have like 2 real switches to eggy (AV perr and ferro), but also nothing that lets eggy in really (stunfisk and runerigus if you predict it wont poltergeist). Also other toptiers like poisonvally and jolteon arent threatened by eggy. So yeah, for the moment, eggy just cant do what it wants to do reliably. One last thing: "eggy is broken because it forces you to run AV per" isnt an argument, AV perr is still very good to check ices/grasses/psychics, which was something the tier lacked before the shift. It happens to check eggy quite well, that's all! I wouldnt be surprised if eggy ends up being banned at some point, but let's see what happens!

Perrserker: do not ban.
As far as I'm concerned it is super balanced, and makes the tier so much better. CB is not even good with runerigus/gorsola/qwilfish/stunfisk everywhere, and without an AV you just die to any attack and just lose to stuff like lilligant glaceon eggy and alcremie. AV is fantastic, and replaces spdef mawile which, let's face it, sucked at checking anything reliably. A great mon for the tier.

Pincurchin: do not ban.
Not too sure why you would use that, terrain teams are super shaky to say the least and pretty much invalidated by jolteon. Pincurchin alone is frail and slow and idk what it's supposed to do over jolteon/eggy as a special attacker or over qwilfish/ferro as a spiker.

Alcremie: do not ban.
I thought it would be great, and it's definitely the mon I've used the most since the shift, and I'm now convinced it's just plain bad. Countered by AV perr/poisonvally, checked by any pokemon with a physical move and/or toxic. You can run gimmick acid armor+rest but we all know sets like that just dont work because of X reasons: not enough time to setup, beaten by another setup sweeper, critical hit, switcheroo, etc: if it worked it would be unbeatable anyway and that's definitely not the case. Musharna is without a doubt a better alcremie, if what you want is a fighting check with good mixed bulk and recovery that can sweep. Rapidash galar also outclasses it as a fairy type. I'll change my mind if you prove me wrong, but I have yet to see an alcremie set that is reliable and not outclassed by something else.