I've pared mine down a lot. The biggest hurdle for me has been storage.
It used to be 5 2u servers running a ceph cluster, but that got to be expensive and unruly.
Now it's mainly a small half depth supermicro for my firewall, a half depth supermicro for home assistant, a 2u Dell for unraid, and a small NAS.
Unraid houses Plex and the *arrs. Along with a handful of other useful services like immich.
I do colo a 1u HP though that houses my pbx, web server, unifi controller, jirai server, nextcloud, email, and a bunch of other servers that I run.
Now, I've got a lot of spare hardware though. 7 Dell 1u servers, 2 Dell 2u, a supermicro 3u, an HP 2u and a bunch of things clients that I might turn into replacements for my rokus.