Unlocking Shadowlands Covenants

How can I unlock a covenant for my Evoker?

I hit lvl 70 and caught a port off a mage to Oribos but there are not NPCS here.
I spoke to Chromie but there’s no option for quest zones//:

Have to do questlines and then do the content

Since DF pre-patch, the threads of fate option has been removed from Shadowlands so to obtain a covenant you must play through the story mode and then choose one.

If all you care about is mogs, I suggest going back on characters who already have SL content done and dusted and just grind out to 80 renown for your covenants, that will unlock transmog account wide for everything.

Threads of fate can still be activated for level 60+ characters as long as the campaign was completed once on the account.

You probably need to do the Maw skip in Orgrimmar. Make sure you have low level quests tracked. I unlocked a covenant on my evoker prior to Dragonflight launch (and after Threads of Fate was disabled for leveling) and was able to do the skip to Oribos from Orgrimmar.