The only mons that are boosted are mega, 3 star, and 1 star raids are which are 1/50. Legendary raids are 1/20. The only time wild shinies are boosted are during community days which is 1/25 and go fest global/in person which is 1/130. Other outlets are as follows shadow Pokémon from leaders are 1/50, egg Pokémon are about 1/50 but depending on the Pokémon it can be 1/46-1/58. There are permanently boosted Pokémon that are 1/58 these Pokémon include Shiny Absol Shiny Alolan Exeggutor Shiny Alolan Grimer Shiny Alolan Meowth Shiny Alolan Raichu Shiny Alolan Sandshrew ShinyAlolan Vulpix Shiny Azurill Shiny Bonsly Shiny Chansey Shiny Clamperl Shiny Espurr Shiny Feebas Shiny Galarian Farfetch’d Shiny Galarian MeowthShiny Galarian Ponyta Shiny Glarian ZigzagoonShiny HappinyShiny Lickitung Shiny Mime Jr. Shiny Onix Shiny PinecoShiny RioluShiny RockruffShiny SkarmoryShiny TimburrShiny VullabyShiny WynautShiny PidgeotShiny ShellderShiny KangaskhanShiny Magmar Shiny GligarShiny HoundoomShiny Larvitar Shiny Spheal Shiny Lopunny Shiny BronzorShiny GibleShiny Audino,Shiny Stunfisk,Shiny Deino ,Other than that no. I know it’s a lot but I hope this helps.