I would like to level up your character on WOW to find the professional leveler

It depends if you're Horde or Alliance. If you're Horde, the best way to lvl up is first killing monsters, then going 2 a human, dwarf, night elf, or gnome village and killin enemy players (if you're a low lvl, get a higher lvl person 2 come with u). U don't need a levelr, u need 2 lvl UP.