
If you go read the Miqo'te Naming Conventions in the official lore forums, you'll see that tribes are divided into territories, with ussually one nunh per zone. So you can say that the tribe of your character is "the Aldgoat Tribe of the Sagolii Desert" or "the Aldgoat Tribe of Coerthas" or wherever without incurring into any lore breaking. Even if canonically they are somewhere else (or if they are different than your made-up N tribe), you can justify it by saying that they are from a different territory that developed in different ways. Go crazy!
Also, remember there's basically no lore about any of the actual tribes except for the U (drake) tribe, which has a village at the border of the Sagolii Desert, but they break the lore by having the nunh and the leader being the same person (which is something that rarely happens, according to the lore thread).
Here is a summary of the dev posts about the matter. There have been also a great number of Miqo'te threads in the past in this very same forum, so you might want to take a dive into them.
Also, remember there's basically no lore about any of the actual tribes except for the U (drake) tribe, which has a village at the border of the Sagolii Desert, but they break the lore by having the nunh and the leader being the same person (which is something that rarely happens, according to the lore thread).
Here is a summary of the dev posts about the matter. There have been also a great number of Miqo'te threads in the past in this very same forum, so you might want to take a dive into them.