I've ended up in the, "Maybe I should watch some old OVAs for a change of pace" zone, and have been doing thusly.
The standouts so far have been:
Sukeban Deka (Yo-Yo Girl Cop) - I would absolutely watch more Sukeban Deka, which I guess means I have to watch the 80's j-drama now. But man, a modern anime remake could be neat. When I picture it in my head I see it looking like Kakegurui.
Sukeban Deka was orginally a manga series and the OVA adapted its opening arcs.