Memorization

I have been playing for a little while and have learned the bs and index numbers for the game in my area. That would be 6 or 8 deck shoes s17, das, no resplit aces, da2. My question is what would be the next best game to memorize. I have only been playing in my local area recently but am planning to head to nv sometime in the near future. With all the different games out there I was wondering what would be the next best game to memorize. Single? Double? H17? Double 10 only?