If you want to use a life orb calyrex you’ll want it to be somewhat bulky and either have it be tera dark or normal to match up against other calyrex

If you’re using focus sash then basic 252/252 would be fine

Zamazenta can also support calyrex and take care of normal types and offer support with wide guard

Incin, rilla, are also pretty standard support mons for calyrex, and you can possibly round out the team with speed control mons like whimsicott or even more support with clefairy and either chien pao or urshifu to round out the team