Task List/evo lv6

Getting more EXP for each click definitely makes those evolutions easier. Upgrade your Badges to get a permanent boost for a one-time cost. Or you could try to get PokéRus; it doubles the EXP you receive and would lead to a lot of people clicking your fields! Hypermode also boosts the EXP you receive by 40%. And the best part is that all EXP boosts stack with each other!

There are also evolutions that don't need any Items or Level ups, some just want to be happy; for a few Pokémon, it's even enough to just be in the right field to evolve! Evolution is truly amazing, isn't it?

For more information on Evolution, check the Wiki.