Alomomola

Alomomola shares similar properties as the Chansey family; great bulk from the STA stat, pitiful offensive capabilities, and it's pink. While it has no use in the PvE meta, its respectable bulk and Water-typing makes it a good choice for those pink-themed gyms.

Best PvE Offensive Moveset

• Waterfall takes advantage of STAB and is the superior pick overall.
• Hidden Power is suboptimal, even if you manage to get the appropriate typing.
• Hydro Pump fulfills the Water-type role, and hits hard with STAB.
• Blizzard is strong, but Alomomola isn't used for Ice-type offense.
• Psychic is meant for Psychic-type Pokemon, despite Alomomola's pink appearance. 

Best PvE Defensive Moveset

• Hidden Power can be more preferable for defense due to its unpredictable coverage.
• Waterfall hits hard on defense with STAB, though it doesn't provide extra coverage. 
• Psychic is the only 2-bar move available, which lets it be used most frequently.
• Hydro Pump is the hardest to dodge, but doesn't offer additional coverage.
• Blizzard can nail Grass and Dragon attackers hard, but takes a while to use as a 1-bar move. 

Waterfall gets STAB and hits quite hard, though its energy generation is below average. Hidden Power can be more preferable depending on the typing, and can allow Alomomola to be more of a wildcard to surprise opponents. It also has poor energy gains. 

Psychic costs the least amount of energy among Alomomola's charge moves, and is therefore the most accessible and commonly used. Either Hydro Pump or Blizzard can be chosen for the secondary charge move; the former gets STAB while the latter provides valuable coverage, including against Grass and Dragon counterpicks.