I scratch much the same itch with Kekkaishi. As a second suggestion, similar in a different direction, how about Pumpkin Scissors? I think of it as about the rebuilding effort after FMA.

ETA: Hrm -- I hadn't realized that both licensed and scanned versions of Pumpkins Scissors are effectively on hiatus early on, making that not quite a fair rec. So a third, again in a slightly different direction: From Far Away/Kanata Kara, which is complete in both licensed and scanned versions. A portal adventure fantasy that also looks initially episodic but ends up pulling every single event together into a satisfying and world-shaping climax.

---L.