in current chapter of The Death Mage Who Doesn’t Want a Fourth Time ch 166 A)at this point has any of the classmates has been reincarnated?? B)if yes did he come in contact, please no spoiler on the contact tyvm i just read chapter 2 of the manga and i wanna hit the god already..
Yeah, some of his classmates already got reincarnated (some just recently, but 1 was like 50+ chapters ago...) and yeah, he's been in contact with atleast 1 of them (the dude 50+ chapters ago) and i think he atleast knows of 1 of the others, but if not he's been in contact with him without knowing.
The two chapters of the manga only cover the prologue so far. As for when the classmates in the third world appear you'd have to wait until the fourth arc