I'd say Enchanter or Druid & Shaman, yeh. Enchanters are the chief enfeebers, come with MP-regen spells (Breeze, Clarity), Mesmerize-spells (the equivalent of Sleep, more or less) and can do magic damage in a pinch. They don't have any of the healing side of RDM. Druids & Shaman are primarily healers but second to actual Clerics in this role. They can, however, also toss out a bunch of good offensive buffs & feebs and the occasional DD in addition to good enough healing for keeping the party alive. If this is like old EQ, Shammies will focus on buffs (Mystic) and poison- & disease-type damage over time spells (Defiler) whereas Druids use direct damage (Fury) and various HP-regen spells (Warden). Druids can use scimitars and shammies spears to do some small melee damage, but it's not a primary focus of either class.
I'd say that if you liked the jack-of-all-trades part of RDM play, try a druid/fury. If you enjoyed the specialised enfeeb role, check out enchanter/coercer.