What are you looking in a tire?
Lowest laptimes?
Good for learning?
Low cost? (maybe not if cost is not really a factor)
Stock tires and cheap tires (SX2, RSRR, RT615K) are great for learning, but you will go slower initially.
Some good info here:
https://yousuckatracing.wordpress.co...aining-wheels/
BTW: You will likely want to increase your front camber for less understeer and longer tire life. Camber bolts are easy. Or camber plates.