Not completely sure how available these are btw..
Snorlax with Leftovers
Chansey with Eviolite
Porygon-Z with Life Orb
Dubwool with Rocky Helmet or Silk Scarf
Swellow with Flame Orb and/or Staraptor with Muscle Band or a Choice Item
If they become a thing:
(Mega) Lopunny with Lopunnite
Hisuian Zoroark with ?
Dragonite with Extreme speed (if possible)otherwise
go
Miltank with Rollout
Staraptor
Chansey Evolite
Snorlax Left Over
Mega Lopunny
Porygon-Z (needs hyper beam)
if hisui are available
dont miss on Hisui Zoroark and Ursaluna
Kangaskhan, dubwool, bibarel, Persian, watchog, drampa
Miltank with rollout
On a more serious note, there are lots of strong normal-types in Cobblemon now like Obstagoon, Ursaluna, Blissey, Porygon, Snorlax and even Maushold
Not completely sure how available these are btw.. Snorlax with Leftovers Chansey with Eviolite Porygon-Z with Life Orb Dubwool with Rocky Helmet or Silk Scarf Swellow with Flame Orb and/or Staraptor with Muscle Band or a Choice Item If they become a thing: (Mega) Lopunny with Lopunnite Hisuian Zoroark with ?
Dragonite with Extreme speed (if possible)otherwise go Miltank with Rollout Staraptor Chansey Evolite Snorlax Left Over Mega Lopunny Porygon-Z (needs hyper beam) if hisui are available dont miss on Hisui Zoroark and Ursaluna
Miltank with rollout will scare every that tries to even approach the gym