I currently have three. A shiny butterfree and a shiny nidoking that are both on my team, and a shiny gyarados while i was trying to hunt shellder. I hadnt picked up the game since beating the elite four but maybe someone in the future ill hunt for more.
i have a few. i randomly found a shiny pidgeotto. then i hunted for a vulpix and got one. i started hunting for a ponyta, but got psyduck instead. and then i have a shiny grimer my bf sent me from pokemon go, and a shiny geodude i sent from my own go account.
Two. One was a Shiny Zubat after chain comboing Chansey to try it out and get some levelling for dex completion done, and the other a Shiny Charmander someone gave me (spare, presumably) after I helped them trade-evo some Shinies they had. Guess it pays to help others! :V
Didn't get any in my main save file, but I've opened another account for a full Shiny playthrough (which I'm starting to regret, but haha)! So far, I've gotten a shiny female Weedle who is now a beautiful green Beedrill (her name is Vespa), and a shiny Metapod which...I didn't catch. ;_; Trying to forget about that one. I'm about to go for a Charmander on Route 3.
I've caught a shiny Bellsprout after 21 sightings yesterday and a shiny Vulpix after 45 to 46 sightings today. Both are my very first ones and Bellsprout was actually a surprise encounter, I didn't hunted for one. I only wanted to level up my pokemon.