What type of tires is recommended for Kia optima,kumho or hankook?
Brand does not matter. Pick tires based on the type of driving you do. Look for good wear numbers, the proper speed rating for the car and summer tires, snow tires, high performance or all season tires depending on the driving you do.
Try some Michelins, they cost more, but are very good tires and may last longer.
I should add also look at the traction numbers for the tire as well. The higher the number the better.