I have recently started a group about Gibson Les Paul ("Goldtop")/Les Paul Custom from 1952 to 1956, i.e. with P-90s, and, in the case of Custom, the special Alnico V single-coil pickup in the neck position. Not only Gibson; Epiphone, Tokai, Edwards and other brands are welcome, as long as they are "copies" of the 1952-1956 models.
https://www.facebook.com/groups/142266623003575/
https://www.facebook.com/groups/142266623003575/