Not sure if I can post the website but for baseball there is this one site that I use that its a daily thing not sure if they do leagues.
You pick players for catagories daily. Like pick 4 guys that will steal a base today. If you look at the pitching matchups and see a few pitchers who give up a lot of steals its a layup. Or pick 4 guys that will go deep today, that type of stuff.