Ara Fell: Enhanced Edition

There are four bounty quests to complete in the game. All four can be picked up from the Ranger's Guild in Aloria right at the beginning of the game, and the first one can be completed with just two party members at about Level 4 in the Aloria Farm area. The second bounty you won't want to tackle until you have a full party after the Ruins of Arei, this can be found in the Starway area. The final two bounties will wait until the beginning of Chapter 5: you'll want to be ~Level 35 for the third one in the Starway Cavern and ~Level 45 for the last one in the Farmlands.

Information on these bounties will be found in the walkthrough I linked in the Road Map, including their locations, when during the story is best to tackle them, and specific strategies for the fights themselves.