I saw online at Catholic News Agency that a community for diocesan priests has been established in the Archdiocese of Denver. It is called Companions of Christ.
I personally think it is a great idea. The diocesan priesthood, I am sure, is a great life, but I can see how it would easily become lonely. Unlike priests in an order very often these men are alone and, especially in the west, separated from other priests.
They already have a website: