Hmm, if we base it on fandom size then:
1.TXT
2.Straykids
3. Enhypen/Treasure (similar fandom size)
If we base on japanese and international success:
1.TXT/Straykids
2. Enhypen/Treasure
Sales, charts:
1.TXT
3. Enhypen/Treasure
So Overall it's:
1.TXT
2.Stray kids
3.En/Treasure
I don't care about the rest so I don't follow them to know exactly what spot they take after the third one.
Third one is always shared between en and treasure because for now they show similar results and it's too early for judge. Stray kids definitely charts better than them, have a bigger fandom and is more known. About TXT - no explanations needed