The first suggestion I can give is to move to 14lbs if you can. You'll get less deflection in the pin deck and it can help you improve carry which typically means an improved average.
All of the manufacturers make great equipment these days. I have thrown balls from Storm, Roto Grip, Track and Ebonite. I personally prefer Track and Ebonite as of late as they seem to be a little more versatile and can be used in some wider ranges of conditions.
Some suggestions can incude:
Heavy oil: Ebonite Mission X (solid)
Medium-Heavy: Track 919C (solid) and Ebonite Vital Energy (pearl)- a great combo
Medium: Track 503C (pearl), 508A (pearl), Ebonite Elevate (hybrid)
Medium-Light: Track 300T (solid), 300C (pearl), Ebonite Cyclone (pearl)
Keep in mind that these are just some general suggestions. The best thing to do is work with your driller to determine drillings and best equipment for you specifically. Not all brands match up the same for all bowlers. Good luck.
My arsenal
Heavy Oil: Storm Virtual Gravity Nano: 2000 AB
Medium-Heavy Oil: Storm Anarchy: 1500 polished
Medium-Heavy Oil: Track 919C: 3000 AB
Medium-Heavy Oil: Ebonite Vital Energy: 4000 AB
Medium Oil: Roto Grip Nomad Dagger: 1500 polished
Medium-Light Oil: Roto Grip Rising Star: 1500 polished