My current replacements are Michelin MXW4 or something like that. They are no longer made. Personally, whenever I change these I will look for an all season touring tire that has an "open" style tread to better channel water away.
As far as balancing I take my wheels to my local Chevy dealer and have them Road Force balanced. Has worked well so far. I'm not a fan of liquid anything in my tires. Beads can be used as supplemental balancing material but tires must be weight balanced also because they require lateral balancing. Check out this link:
http://www.innovativebalancing.com/