Forgotten Competitive Pokémon (and how to buff them)

Out of the 6 Switch Pokémon games, only Sword/Shield and Scarlet/Violet have supported official tournaments and these are the Pokémon that were left out of both. Here's what they currently bring to a team and how I would buff them to be more viable. Timestamps: 0:00 - Intro 1:04 - Parasect 2:55 - Bibarel 4:37 - Swellow 6:18 - Simipour 7:54 - Furfrou 9:28 - Wormadam 11:03 - Everyone Else 13:37 - Outro Second Channel:    / @xtra_bell