If a player’s game is rained out, canceled, or postponed, you can switch that player from your lineup even after a game’s scheduled start time. The tricky part is that if all games for the day have already started, there will be no available players to replace them.
The two most popular are DraftKings and Fanduel, but many prefer smaller platforms for various reasons.
They are typically less expensive and do score as highly as starting pitchers. Yet, they can be an inexpensive option when trying to fill out a lineup.
It is in all but six states, and each website or app will use your location to let you know if you are allowed to play.