I know some people have a hard time beating man coverage, but here are a few routes that I've learned beat a man press.

Circus route, or the C route as some call it. The HB it usually on this route, and it kills man coverage due to the cuts out of the backfield.

Smart Route posts also work due to your WR cutting then pretty much running a diagonal streak toward the middle of the field. These are a great way to get big yards against a cover 0.

Drags are one of the most known man and zone beaters, but they never go for big yards as you hope. What you should do is combine routes to try and mess up the DB guarding the drag so he can go for a big gain.

Combo routes also work well to beat man. Usually working from a bunched set like Shotgun Tight can work well against most man coverages.