A little expensive. But you get clean hardware, and i think most importantly, its the hardware Umbrel tests/can test reliably.
I personally have a miniPC. but seems you are not interested in that.
Discussion
Looking into mini itx
nostr:npub1aeh2zw4elewy5682lxc6xnlqzjnxksq303gwu2npfaxd49vmde6qcq4nwx got this one I think its great for the money. just make sure its 2tb of course if you want to run bitcoin core.
Can confirm it’s good. Very reliable.