Just a heads up, Pokemon is having a few special events from April 26 to May 6.
You'll get another chance to catch a Walking Wake and Iron Leaves in raids, which Gamefreak seems determined to keep these guys locked away in.
And there will also be Mass Outbreaks of Pokemon with a higher chance of them appearing shiny. This time featuring gold shinies. Magikarp, Varoom, Shinx, and Rellor will all be appearing during that April 26 to May 6 timeframe.