This is the one:
https://www.dual-boxing.com/threads/...d-optimization
On the other topic of covenants:
Depending on the bonus and the viability of the covenants for each role, Zok's idea to make a team for world content and a team for dungeons and simply switch out certain characters may be the way to go.
If you are trinity and necro's turn out to be the best pick, just add 2 hunters for world content and you can do it all in 1 go. Then you can potentially make a team consisting of your tank/healer and fillers to do the content on them, assuming they benefit from the same covenant. I would personally not go for 3 teams if they end up being split as that would just be a hassle.
Also according to Preach, the Night Fae weekly seems to be the best for resources so if you are boxing druids, going NF (which as of right now is only slightly behind Venthyr DPS wise), will give you a little boost in resources, pretty much free.