What tire are you running now and what improvements do you want to see?
I’ve been running a 24x3" Felt Berm Master and can say it’s a very good tire for a mix of pavement and trail riding. It does fine in wet conditions but I haven’t ridden in much mud. Another user has posted a very good summary comparison of this tire with the Intense DH. I ordered mine direct from Felt but I’m not sure if they’ll ship to Panama.