If you're looking for information on the specific classes and their skills, I suggest using this site, FFXIV Info. I linked it to the dragoon, since that was your first question. With my limited experience in FF games, Freya is the closest example I can think of to FFXIV dragoons, as both use a lance and jump around for their attacks.
We have very little info on summoners and scholars, but from what I've read, summoners will be DPS with maybe a potential to tank a little and scholars will use their pets for healing. Arcanists, summoners, and scholars are still very speculative as they haven't been available for play.
Archers, thaumaturges/black mages, and arcanists would probably appeal to you as ranged DPS classes.
In my experience playing the beta, no one is flashier than thaumaturge, though I didn't get archer high enough for group play or AoE attacks. Every class is going to have cool armor choices, so that really comes down to personal preference.
We have very little info on summoners and scholars, but from what I've read, summoners will be DPS with maybe a potential to tank a little and scholars will use their pets for healing. Arcanists, summoners, and scholars are still very speculative as they haven't been available for play.
Archers, thaumaturges/black mages, and arcanists would probably appeal to you as ranged DPS classes.
In my experience playing the beta, no one is flashier than thaumaturge, though I didn't get archer high enough for group play or AoE attacks. Every class is going to have cool armor choices, so that really comes down to personal preference.
I'm a tinker! Tinkerer? Hrm.... I'm an artificer! - Myxie Tryxle | Impressions and Memories