Without having checked all the gory details, I can say that the cost of a dropoff for car hire in the US for states as far apart as California & Ohio is likely to be close to the national debt of, say, Ecuador. This is because most car hire locations here are owned by different entities, even the same brand, & the LAX location would have to pay to have the car driven from Ohio back to LA.

National is generally the best company for one-way rentals, & I would definitely suggest hiring in advance.

Gail In Eugene