This article is from the Final-Fantasy and other Square Soft Games FAQ, by email@example.com (Nick Zitzmann) with numerous contributions by others.
SaGa Frontier is **completely** open ended. Because there is no central
storyline, and because the quests are very different, the "next quest"
varies from character to character.
Here's some ideas on what to do for each quest, listed in order of
general linearity from most to least:
Red: Talk to the engineer to move to the next region. Once you're off
the Cygnus crew, explore each region to find a character who will
join you. Take up their quest. It might lead you to a BlackX base.
Emelia: Go level-building in between quests, and talk to Roufas when
you're ready to move on.
Riki: You can search for the rings in any order you want. Talk to
Mei-Ling in Koorong for guidance.
Blue: You start with the gift for Realm magic, and have to find the
gifts (in order) for Rune/Arcane and then Time/Space Magic to
Lute: Roam the world and do some serious level-building. When you're
ready to end Lute's quest, go to the cafeteria in Owmi.
Asellus: You first have to find a way to escape from Fascinaturu.
Once you've done so, head home to Shrike for a family reunion.
You'll also need to visit Lord Manor in Owmi. From there,
seven mini- events are triggered at random places throughout