I remember being a character in the recasting of FFVIII Substitute Saviors, I wouldn't mind looking through that again someday.
I didn't contribute much to the fanfic community on FFO. I did a couple short birthday fics for people I don't see much of anymore and an unfinished Magus backstory piece from Chrono Trigger a long time ago. I'd say the best pieces of my writing on FFO were my chapters in the unfinished FFVIII Casus Belli group fics. I remember really aiming to please with my chapter in the first Casus Belli story and I still occasionally think about how the second attempt could have played out as I really liked the main characters for it.