'Pokémon Sun and Moon' tips & tricks: a guide to Alolan Pokémon evolution

"Pokémon Sun" and "Pokémon Moon" have been out for two months now, so players have definitely learned a trick or two. However, looking for ways to evolve every Pokémon in the Pokédex can be a pain. So, here's a little guide on how to evolve the Alolan Pokémon in the game.
To evolve a Pikachu into an Alola Raichu, trainers will have to increase its happiness level by giving it a lot of attention. Pikachu may not be the strongest Pokémon, but it still wants to be used by trainers in battle. Once Pikachu's happiness level rises, players may use a Thunder Stone to evolve it into an Alola Raichu. Trainers can buy Thunder Stones in Konikoni City. There is also a Thunder Stone in the Dream Park on Akala Island.
Like the Alola Raichu, trainers will have to raise the Alola Meowth's happiness to evolve it into an Alola Persian.
Speaking of evolutionary stones, trainers can evolve an Exeggute into an Alola Exeggutor by using a Leaf Stone. The Alola Sandshrew can also evolve into an Alola Sandslash by using an Ice Stone. Furthermore, trainers will need an Ice Stone to evolve an Alola Vulpix into an Alola Ninetales. Trainers can buy Leaf Stones in Konikoni City. Ice Stones can be obtained in Po Town.
Evolving an Alola Rattata into an Alola Raticate is much easier. When the Alola Rattata reaches level 20, trainers can evolve it into an Alola Raticate at night. Evolving the Alola Grimer is just as simple. Once it reaches to level 38, it will evolve into an Alola Muk. Trainers can also evolve an Alola Diglett into an Alola Dugtrio once it reaches level 26. Want to evolve a Cubone into an Alola Marowak? Just level up to level 28 and evolve it at night.
Last on the list is the Alola Graveler and Alola Golem. To evolve into an Alola Graveler, an Alola Geodude will have to reach level 25. After that, trainers can evolve it into an Alola Golem, by trading the Alola Graveler to a friend. The Pokémon will evolve into an Alola Golem once it is traded, so just ask the friend to trade it back once the process is complete.