Law’s scouting notes: Latest on Blue Jays’ Ricky Tiedemann ... - The Athletic

Keith does a phenomenal job covering the minors. The depth and breadth of his work are fantastic. 

BA and MLB Pipeline do tremendous work. They provide awesome content. Fortunately for them, they are parts of teams of writers. Law, Kiley McDaniel and Eric Cross amaze me by producing exceptional prospect info by pretty much by themselves. They must have tremendous organizational skills. I also check out the work of other sites and groups but these are the prospect mavens that I always use to generate my own prospect lists.

I have a few others bookmarked. What others do people recommend? (I know about Fangraphs as well. Unfortunately, the lack of timeliness makes their current prospect work unusable.)