Here's my Ohio maps and breakdown that I spent 2 days working on.
Self Analysis:
OH-01 is shored up to R+20 and includes all of downtown Cincinnati.
OH-02 is also R+20 and includes all of East Cincinnati (including all of the black-majority areas).
OH-03 is Columbus plus a couple close-in Democrat voting suburbs, and D+53.
OH-04 is Jim Jordan's district, R+21, rightfully so since he is the leader there; he gets mostly rural areas and a chunk of suburban Columbus.
OH-05 is R+19, includes the clay-soil Northwest Ohio region, with some towns and most of Toledo to show for it.
OH-06 is based in Youngstown, is just over R+10 but should expand on that margin as that area continues to trend red.
OH-07 is R+12 and includes Akron and southern suburbs of Cleveland.
OH-08 includes the northeastern chunk of Cincinnati, Kings Island, and many of the northeastern I-71 area suburbs. It is over R+24, the safest (R) district on the map.
OH-09 is R+14 and captures much of the Lake Erie coast of Ohio, with slightly liberal towns like Lorain, Sandusky and East Toledo included. It includes some Delaware County suburbs so it might trend bluer.
OH-10 includes all of Dayton and is R+11. Nothing much to say there.
OH-11 is Cleveland and is D+59, not much to say there either.
OH-12 is R+11 and is based in Canton and southwards towards much of the rural inner part of the state.
OH-13 is also R+11 and includes the western Cleveland suburbs all the way down the highway corridor to near Columbus.
OH-14 is only R+9 for the moment, but the area is 87.2% white and trending redder as we know, so it should solidify over the years.
OH-15 is another rural district that includes Athens (Ohio University) and southern GOP-leaning Columbus suburbs. It is a R+19 district.