Woodlawn State Park - shallow beach break gets some surf on strong SW wind. Watch videos of how it looks like in the Summer.

Ashtabula has a bunch of beaches, but most of them are private. Watch this video of Ben Gravy attempting to surf somewhere in the vicinity. Yet, there are at least 3 known surf spots accessible to public:

Walnut Beach Park - sandy beach, may get waves on W, SW and strong NE winds. Watch video for sample conditions in April. Established kiting and windsurfing spot.

Saybrook Park - sandy beach may be blocked now.

Geneva State Park - nice sandy beach.

There is only chance for surfing on W, SW, strong NE winds.

Beaches at Mentor-On-The-Lake start generating surf on NW, W, SW winds.

Headlands Beach State Park

Mentor Beach Park - I honestly don't see where exactly to surf there (maybe there is some other Metro Park in the area), I think the Yacht Club nearby is a better bet.

Overlook Beach Park

Edgewater Park Beach well-established surf spot in Cleveland, OH. The best waves build at breakwall and sewer pipe on strong NE, NW, and SW winds. Here is a comprehensive video on surfing in Cleveland, Ohio. Watch how surfing may look like at Edgewater Park Beach in the Summer, September, October

There are also some references to surfing in Euclid Park - but the sandy beach seem to be spoiled with the wave breakers. West outskirt looks promising though.

Presquile State Park - shore and sand breaks at Sunset Point and Beach #6 work on NW, W, SW winds. A little bit skeptical on Beach #6 because of wave breakers, but still, that is closest surf spot to Pittsburgh. Check this video by Ben Gravy for a good surf day in the past.

Freeport Beach - waves build along sand and pebble beach on NW, SW.

Yet another good place on lake Erie Canadian shore. Check out the Pier at Port Stanley Beach: waves may come at sand bar on SW, SE winds. I'd also have a look at the small sandy beach at Main St. exit, the satellite photo shows some wrinkles coming to the shore.