>>54547599There are some methods
>find desired outbreak>you can change outbreak spawns by going into your switch settings and changing the date (even leaving it the same resets the outbreaks)>knock out 60 of the outbreak for maximum odds>hard save>keep knocking them out or use a picnic/leave the area to reset spawns>optional: use a herba mystica sandwich for max odds, but this to me is a waste of a rare item considering shiny charm + outbreaks gives you a shiny within 30 minutes max>reset as necessary Or alternatively if you want to hunt something not included in outbreaks (paradoxes for example)
>hard save before setting down a picnic >encounter and shiny power lv 3 for your preferred Pokémon's type>just run around for 30 minutes until a shiny spawnsThat's it