Both Fangraphs and Baseball America expanded their prospect lists for the 2019 MLB Draft. Also, Fangraphs and Perfect Game released mock drafts this past week. Fangraphs is only for the Top 10 picks, while Perfect Game goes through the entire first round.
Prospect lists:
Mock drafts:
Baseball America (4/10) - Bryson Stott, SS & JJ Gross, RHP (HS)
24/7 Sports (4/12) - Matthew Allen, RHP (HS) & Braden Shewmake, SS
Perfect Game (4/24) - George Kirby, RHP & Josh Jung, 3B
Also, here’s my spreadsheet that has stats (through 4/26) and some additional info.