Aiken is coming off a big game against the Steelers, in which he recorded five catches for 77 yards and one touchdown. He's going to be the clear number one option for the Ravens, as Steve Smith Sr. will likely be sitting this game out.
Aiken has good measurables with a 6'2" body and 4.45 wheels. In daily leagues, his price is also extremely low for the amount of targets he should see. He gets a good matchup against Cleveland, who has been one of the worst pass defenses in the NFL, and he's another option that will allow you to pile up on elite talent at other positions.
In seasonal formats, Aiken makes for a very nice waiver wire pickup or streaming option, especially if you are in a bye-week crunch or not loving the matchup of one of your regular wide receivers. Aiken could end up having a big Week 5, so consider starting him across the board.