Any good Free MMOS?

Not the biggest fan of mmos, however have played a few mmorpgs such as TERA and Trove, and had a decent time. These are some pure mmos i found on google to be ranked pretty high if it means anything to you
Final Fantasy XIV.
Blade & Soul.
Crossout.
Neverwinter.
War Thunder.
World of Tanks.
World of Warships.
Star Trek Online.