Server rack recommendation...

I have an old full depth server rack that I am not using because... well... it is too frigging big.

I'm going to be moving into a new home, should have fewer that a dozen ethernet drops. I will be having xfinity as my ISP.
I have a FW Gold Plus, and currently a small PoE switch (which will soon be the 8 port firewalla switch SE.

So I am looking for something to rack mount that is more compact (I think just shallower?). I figure I would get the firewalla rack mount since it has a patch panel and would mount the router. Not sure if the space is there for the switch as well.

But lso want something for whatever I need for xfinity - likely BYO cable modem.

is everyone already doing this and am I just late to the show? What did you get?