As the years have gone by, Pokémon's development team has added new evolutions and forms for many Pokémon that never evolved. Just recently in Generation VIII, single-stage Pokémon like Farfetch'd and Corsola have received new evolutions and regional forms.
But, there are still quite a few Pokémon that do not evolve or have any pre-evolutions that have been introduced. While many of these stand well enough on their own, like Girafarig or most Legendaries, there are a few that look like they could evolve further or have a new pre-evolution. Here are ten Pokémon that don't have an evolutionary family that should.
10 Pincurchin
Introduced in Generation VIII, Pincurchin is an Electric-type sea urchin-like Pokémon that does not evolve. It's been compared to Mareanie and Corsola in its design, both of which have an evolution.
It would be awesome to see Pincurchin evolve into something that is dual Water/Electric-type, given its aquatic nature. The design seems very simple, and it would be great to see it play more into the pin-cushion motif. Perhaps something like a sewing machine — we all know the makers of Pokémon love inanimate objects.
9 Komala
There's a popular fan theory that the Pokémon Komala is actually the log, not the koala holding it. This is evidenced by a few things, including the fact that Komala's shiny coloring sees the bear stay the same color while the log changes.
Whether or not you subscribe to that idea, wouldn't it be cool to see an evolution for this Pokémon that incorporates the log and bear into one another more fully, like Rillaboom and its large wooden drum?
8 Tropius
Tropius is one of those rare Pokémon designs that it seems everyone likes. It's rare to see a hater surrounding Tropius. Why Game Freak seems hesitant to give it any love is unclear, seeing as it's a great design and a competitively-viable Pokémon that so many people love.
As such, it would be great to see an evolution for it. Some say it's too powerful to become even more powerful, but maybe a pre-evolution would work. It's a very developed design, so a less-developed and cuter version might be great.
7 Delibird
Either because it's so old (having been released in Generation II), or because it's really deserving of an evolution, many have long-called for Delibird to evolve in some way. This Ice/Flying-type Christmas bird looks like Santa and delivers present through a magic sack.
How Delibird would evolve is unknown, but some have proposed a Krampus-like creature that might be Ghost- or Dark-type with the Ice-type, ditching Delibird's Flying-type. Delibird also has an incredibly-low base stat total and a tiny movepool, so a buff in that regard would be cool, too.
6 Mimikyu
The Ghost/Fairy-type Mimikyu definitely doesn't need an evolution in terms of its design and competitive viability. But, its lore might suggest a great idea for an evolution. Since Mimikyu is so horrible to look at that gazing upon it can kill a person, it is obviously detested by many. It wears the Pikachu costume so that people will love it.
This is begging for an evolution that occurs when friendship is leveled up high enough between Mimikyu and its trainer. It could be so overjoyed with that love that it evolves into something that someone can actually look at.
5 Spinda
There is no Pokémon in existence that has more possible forms than Spinda. They say no two are the same. According to the Pokédex, the chances of two Spinda having the same pattern are one in four billion. In reality, it's about one in 4,294,967,295.
Whether an evolution would keep this no-two-the-same patterning is probably dependent on each person's opinion, but it would be cool to see this dizzy panda have an evolution.
4 Rotom
Rotom is an interesting Pokémon that already has a few forms. As a Ghost/Electric-type, Rotom has the ability to "possess" various household appliances and base its form around them, which even changes its type. It can take over a fridge and become Ice/Electric, a fan and become Flying/Electric, and so on.
An evolution for this Pokémon could be cool and could incorporate all the different household appliances together into one large behemoth, Power Rangers-style.
3 Castform
Another Pokémon that has a few forms but doesn't evolve is Castform. Introduced in Generation III, this weather-related Pokémon will change its form and type in different conditions. In the sun, it becomes Sunny Form, in the rain, it becomes Rainy Form, and in the snow or hail, it becomes Snowy Form.
Just like Rotom, it would be so cool to see an evolution for Castform that incorporates all of its forms. The evolved form could be some sort of weather-harnessing monster.
2 Dunsparce
All jokes about Dunsparce evolving into Origin Form Giratina aside, it should definitely get an actual evolution. This rattlesnake, burrowing Pokémon not only seems to have the wrong type, but it's one of the few older Pokémon that should evolve but doesn't.
The evolution should definitely adopt the Ground-type, given Dunsparce's affinity for the ground. It could also incorporate the Poison-type given the fact that Dunsparce is based on snakes. Maybe it could even expand the tiny wings on Dunsparce's back and become a Flying-type.
1 Tauros
Tauros is unfortunately the holder of a unique title that is somewhat sad. Aside from Legendaries, Tauros and Ditto are the only two Pokémon from Generation I that still don't have an evolution, Mega Evolution, regional form, or Gigantamax form. Even now, the Kantonian birds have Galarian forms and Mewtwo has two Mega Evolutions.
For this reason alone, poor Tauros should receive an evolution. Why it doesn't evolve into Bouffalant is its own mystery. Maybe one day we'll see a regional form for Tauros, or an evolved form.