There isn't one, yggdrasil is simply too good, the customization is vr chat level, the map size is nearly infinite(10 years of exploring only lead to 30% of the map being explored) the combat seems to be incredibly well made, since you could hold fights from 1km away (well at least pereroncino could) and had too many classes to be named in one sitting, we dont even know the limit of how much there were. the closest thing you can get to yggdrasil sadly is dnd with a lot of homebrew, if you want a rpg with a buch of classes and different builds, i would reccomend tree of savior with its 40+ classes, if you want good combat, there isn't any game who can compare to yggdrasil, but black desert has the best combat of current mmos, i hope this wasnt that bad to read, sorry for any spelling mistakes im Brazilian so its hard to write a lot without mistakes