So Shiny

• WOTC Official Reminder Textofficial rules
  Scry — Look at the top N cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.

• WWizards of the Coast2021-06-18
  Official Ruling
  So Shiny's triggered ability checks whether you control a token after it enters the battlefield to see if it triggers. If you don't, the ability won't trigger at all. The ability will check again as it tries to resolve. If you don't control a token at that time, the ability won't do anything. It doesn't have to be the same token for each check, however.
• WWizards of the Coast2021-06-18
  Official Ruling
  If So Shiny is itself a token, its enters-the-battlefield ability will trigger.

Rulings via Scryfall