Welcome to Runes of Magic!
Ranged physical is Scout, ranged magic would be Mage, Priest, Druid, and Warlock. Mage is strongest, generally, but Warlock and Druid can be so much more than support classes.
Melee classes are Knight (tank, mostly), Rogue, Warrior, Warden, and Champion.
Note that RoM is a dual-class game, so you can reap the benefits of two classes, along with elite skills that can be gained from level 15 through level 50 (every five levels), then levels 60 and 70.
There are three races, Human, Elf, and Dwarf. Each race has Classes which are unique to them. Check during character creation. Note that Dwarves cannot be Scouts, period.
Have fun!