I understand. My question was mostly rhetorical, because I am not a proponent of treating Terekeme as some separate sub-ethnos. It was mostly used for nomadic groups as opposed to settled ones.
If I am not mistaken, Terekeme in Dagestan were moved there by Kaitag Utsmi from present day Shemakha, Azerbaijan. The reason they are Sunni is maybe due to this nomadic way of life, or some other obscure reason.
Here are some photos of them (that are still nomadic) from the republic :
https://www.photoawards.com/winner/z...id=8-164136-18
These photos, taken in Gobustan in 1940-1950s , are of the nomadic Elat (don't know anything about them) tribe/people. Very unique looking people. First women looks almost Saami:
https://i.imgur.com/k9Nr9l1.jpg
https://i.imgur.com/xzrWIBo.jpg