Quoted By:
If you could get cutmons in exchange of Pokémons present in Galar:
(pokemon traded must be similar to preserve the ecosystem, look at my example to understand)
(You can't get rid of 8G mons for obvious reasons)
1G
Pidgeot line -> Unfezant line
Golem line -> Gigalith line
Muk line -> Garbodor line
Hypno line -> Beheeyem line
Primeape line -> Mienshao line
2G
Gen 2 starters -> gen 7 starters
3G
Breloom line -> Amoonguss line
4G
Gliscor line -> Drapion line
