You can lend a hand in Pokemon Sun & Moon's 7th Global Mission by

Ranking the Pokemon Generations. Which Generations Are The Strongest…, by Patrick Melbourne

Another Way Bulbagarden

You can lend a hand in Pokemon Sun & Moon's 7th Global Mission by going fishing

Global Missions and Rewards - Pokemon Sun & Pokemon Moon Guide - IGN

Pokémon: The Series (Anime) - TV Tropes

Pokémon Global Link End-of-Service Announcement

Modern Day (Page 27)

Helping Hand - Pokemon Sun & Pokemon Moon Guide - IGN

Modern Day (Page 27)