Actually, @sigmajin is in the midst of creating a site that just might make this much easier. I don't know if he's around right now, but-- https://steemcombustor.com/!?sigmajin/testing-post-includes

I'm not sure if he located them one by one, but if he used a keyword to do it, it might make your job a lot easier. I'll let you know if he gets back to me.