By Level-Up:
* Quagsire: Learns Waterfall at level 33
* Gyarados: Learns Waterfall at level 48
* Seismitoad: Learns Waterfall at level 53
By TM:
* TM32: Waterfall (can be taught to any compatible Pokémon)
By Breeding:
* Squirtle: Learns Waterfall via breeding (egg move)
By Evolution:
* Poliwhirl: Evolves into Poliwrath at level 42, which can learn Waterfall by level-up.
Other Considerations:
* Some Pokémon, like Poliwrath, may need to be traded to learn Waterfall via level-up.
* Check the move compatibility list in your game or online resources to see if any other Pokémon in your game can learn Waterfall.
Note: Some Pokémon may learn Waterfall through other methods, such as the Move Tutor or through events, but these are not available in the main game of Pokémon White.