As a former WoW druid player who started a monk first and wanted to be a red mage for the same reasons as you, I ended up really enjoying the summoner and Scholar. After level 30 you can unlock both classes and I swap back and forth constantly. Between you and your pet and the 2 roles you can do pretty much everything, so I felt the same kind of satisfaction from it that I got on my druid before. I hope you are having fun with the game though regardless of what class you pick!