I think what you are doing is really cool OP.
Campbell County
Food
Best places to eat is sort of subjective, so I'll give you some places that have been around for a long time and generally have a good reputation.
° Spare Time Grill, Alexandria, KY (breakfast...they service lunch too and both are good but breakfast is king...family owned and homemade pies are incredile... looks like an old time diner)
° Pompilios, Newport, KY (Italian, scenes from Rain Man filmed here, been around since the '30s)
° Knotty Pine on the Bayou, Wilder/Cold Spring, KY (an older guy I know from Seattle came in for a business meeting and told that he'd eaten at Cajun restaurants all over the country and had never eaten better Cajun...it is very good, gotta get reservations)
°Goetta Fest, Newport, KY (a long history of this area and Cincinnati is Goetta. If you've never had it order it at a breakfast place up in NKY, it is a German breakfast meat and is delicious...there is actually a festival near the riverfront in last summer)
Attractions
Newport Aquarium- trip advisor has it ranked as one of Top 10 aquariums in the country, it is pretty cool, my kids love it.
Fort Thomas Antique Mall- pretty cool place if you are into antique shopping...they also have a bourbon bar inside so worst case scenario....
There is pretty much always something going on in Newport during summer, most of the other towns are small cities with little to do except a few parks and city fesitavls etc. The bigger festivals come to Newport riverfront.
Extra?
Make time to spend a day in Cincinnati too. Obviously the Reds are there and Cincinnati Zoo is #1 Ranked Zoo in the country. They do a great job there. Tons of places to eat and visit. All of Jeff Ruby's places, Krohn Conservatory, Cincinnati Discovery Forest, Kings Island is 30 mins North etc.