Try the search bar at the bottom of the page. There have been numerous discussions about batteries on the forum over the years. From your comments on another thread you may also want to look up the definition of 'protected' Li ion cells.
Sadly there are many vendors selling knock off cells on ebay and elsewhere.
Scams on these things can go pretty far, up to the point where you get a genuine looking outer case that is filled with sand and a very low capacity cell inside.
AW are high binned I forget Sanyo or Panasonic. Probably your best bet. Efest are meh.
Survival Laser sells them and you can assume they are legit buy the price and reputation.
All my batteries are Efest and are terrific. No bad experiences. I have about 8 16340's in all and they work excellent and are a reasonable price at $4-$5 each.
I also have four 18650's and they are just as good. I've heard great things about Sony and Panasonic though. I have a few Efest 10440's and 14500's and 26650's.