Oh wow, it's SUPER hard to find good Kaiba/Yami fic. There's just SO MUCH of it, and some most of it is really awful, some of it is so-so, and a super small percentage is really good.

Of course, most of the time I find a lot of Kaiba/Tristen (forgot his japanese name), and God forbid, Kaiba/Mokuba. I don't like either of them. XP

I'm sure there are some fic recs on fanfiction.net (each fandom has one), and most of the fics I read were on ff.