1.12.2 Need change player nametag

I mean... https://hub.spigotmc.org/javadocs/b.../Player.html#setDisplayName-java.lang.String-

 

I'm not quite sure but I think it does now.
Anyway, you'll need to use NMS(packets) then.
Also, use Google : https://www.spigotmc.org/threads/change-players-name-tag.191025/

 

@Maxx_Qc , packets change skin too, he asked only for nametag.

 

I'm pretty you can use packets for changing the nametag without having to change the skin.
I'm not on my computer right now.

 

I found this and it seems to be working: https://www.spigotmc.org/threads/above-head-name-tags.101286/