What Pokémon deserves an evolution but doesn't have one, not including Pokémon in evolution lines with 3 already or mega evolution?

(Updated following Sword and Shield's release.)

Long Overdue Evolutions

• Farfetch’d evolution - Fighting/Flying ✔️
• Dunsparce evolution - Normal/Dragon
• Qwilfish evolution - Water/Steel
• Corsola evolution - Water/Rock ✔️
• Luvdisc evolution - Water
• Torkoal evolution - Fire
• Carnivine evolution - Grass
• Lumineon evolution - Water
• Spritzee branched evolution - Fairy/Dark

Long Overdue Pre-Evolutions

• Baby Kangaskhan - Normal
• Baby Tauros/Miltank, evolves based on level up and gender - Normal
• Baby Lapras - Water
• Baby Skarmory - Steel/Flying
• Baby Tropius - Grass
• Baby Absol - Dark
• Baby Druddigon - Dragon

Missing Link Evolutions

• Luvdisc -> Luvdisc evolution -> Alomomola - Water
• Dunsparce -> Dunsparce evolution -> Drampa - Normal
• Torkoal -> Torkoal evolution -> Tortonator - Fire
• Baby Kangaskhan -> Cubone if leveled up to Lv. 15 without Kangaskhan [or] Kangaskhan if leveled up to Lv. 15, is female, and with a Kangaskhan in party

New Mega Evolutions

• Mega Jynx - Ice/Psychic
• Mega Mr. Mime - Psychic/Fairy ✔️ (Has Galarian form now)
• Mega Nidoqueen - Steel/Ground
• Mega Nidoking - Steel/Ground
• Mega Ariados - Bug/Poison
• Mega Flygon - Ground/Dragon
• Mega Lumineon - Water/Electric
• Mega Carnivine - Grass/Dragon

New Regional Variants

• Regional variant Butterfree - Bug/Psychic ✔️ (Has Gigantimax form now)
• Regional variant Growlithe/Arcanine - Water, Water/Dragon
• Regional variant Machop/Machoke/Machamp - Fighting/Dark ✔️ (Has Gigantimax form now)
• Regional variant Ponyta/Rapidash - Fairy, Fairy/Flying ✔️ (Has Galarian form now; Psychic but close enough)
• Regional variant “crystal” Onix/Steelix- Steel/Ice
• Regional variant Aipom/Ambipom- Fighting

New Gigantimax Forms

• Gigantimax Jigglypuff (From the “The Ancient Puzzle of Pokémopolis” anime episode)
• Gigantimax Alakazam (From the “The Ancient Puzzle of Pokémopolis” anime episode)
• Gigantimax Jynx or Jynx-Evolution
• Gigantimax Seviper (Based on the World Snake, Jörmungandr)
• Gigantimax Electivire
• Gigantimax Magmortar