Which is why I linked the only tamable wolf with flames. There are hounds with flames, but you said wolves.
This a hound with a fiery look: https://www.wowhead.com/npc=61658/mature-flame-hound
https://www.wowhead.com/npc=8922/bloodhound-mastiff is one too.
https://www.wowhead.com/npc=160570/smoldering-alpha also a hound.
And this one also has a fiery look https://www.wowhead.com/npc=30952, but these are all hounds. And hound aren’t wolves.
There aren’t any tameable wolves with fiery or “cinder” looks other than the one I already linked. Unless of course that person with those “cinder wolves” somehow got them when a mob was unintentionally tameable, there aren’t any wolves that are currently tameable with those looks other than the one I already linked.