nealy W.
Google
This is the main bar for drinks on Fountain Square. Reasonable prices ($4 Michelob Ultra), but they don't accept cash.
They serve about 20 of the most popular bottles and cans, including even some made in Cincinnati. A full bar is also available, but I wouldn't order anything too fancy or unusual. By the way, the line moves fast.
There are only 6 barstools, but plenty of tables and chairs on the square. Otherwise, you can stand or walk around (or dance) while you drink, but ONLY while you're on the square (there are several signs along the border to warn you ... plus security / cops)