I believe it's only Evee-Jolteon and Pikachu-Riachu.
Pikachu can evolve into a Raichu.
Pikachu evolves by using a thunderstone, so technically he can evolve at any level.
The Pokemon that evolve using a thunderstone are: Pikachu into Raichu Eevee to get a Jolteon
Eelektrik - Eelektross
You can evolve Eelektrik by using a thunderstone.
Two Pokémon evolve using a thunderstone: Pikachu to evolves into a Raichu and Eevee evolves into a Jolteon.
Pikachu can evolve into a Raichu.
Pikachu can evolve into a Raichu.
In Pokémon Platinum, the Thunderstone will work on only Pikachu and Eevee. Using the Thunderstone on Pikachu will allow any Pikachu to evolve into a Raichu and using it on Eevee will allow you to evolve into Jolteon.
Evolve the Eevee you get given at the top (using the back entrance) of the Pokemon 'Mansion' in Celadon using a Thunderstone.
pikachu
Jolteon evolces using a thunderstone but if you give it a fire or a water stone it will evolve into a Flareon or a Vaporeon