Klingshirn Winery in Avon Lake is small & family-owned, so not super well-known. I've been going there for years.
Not much on ambiance: no restaurant or scenic views. Just a tasting room.
They make/sell wines from their own grapes, mostly Ohio varietals. They also have some european rootstocks that are climate/terroire-approriate for Ohio (Seyval, maybe some others).