5a metal yoyo

Basically any 1a yoyo works for 5a. The thing is that you want the wieght of the yoyo to fit with the weight of your counterweight, there are a lot of preferences on this so try to put your favorite counterweight on several of your yoyos to see what kind of weight you are aiming for.

ANd then you have the regular size and shape preferences.

If you want it to be metal get a Shinwoo Zen. If you could rise your budget get a fundametal or something around 85$ like a genesis.