I think the EV-reducing berries should also be added to the shop. The ones we get from PokéStops and catching Pokémon aren’t enough, especially when trying to reset or fix EV spreads.
For example, I wanted to reset my Shadow Calyrex into an Ice Calyrex build for raids, but since I don’t have enough berries, I can’t properly reset its EVs. It feels really discouraging because I don’t want to waste or sell rare Pokémon just because I can’t adjust their stats.
If these berries were available in the shop (even at a fair price, but hopefully it's not as expensive as battle berries), it would make EV training and resets much more manageable and I'm pretty sure players will like this change if ever applied.
Pomeg Berry: 222
Kelpsy Berry: 188
Qualot Berry: 192
Hondew Berry: 208
Grepa Berry: 239
Tamato Berry: 196