Those old tiny/micro PCs make for wonderful TV steaming boxes, and easily replace Fire TV sticks, AppleTV boxes, Rokus and other similar proprietary garbage. They are also great for retro gaming.

I've purchased a few HP and Dell slim desktops (typically 2nd or 3rd generation i3s) on Newegg, from refurbished resellers. During the pandemic, they were $50-70 shipped and included 4GB of RAM. They support PCI-express in low profile, so I could plug in a monitor with 4k output using just displayport and a Radeon 7470 or an R5 R240. You could even get an i5 for not much more. I even had a couple work from home companies offering to ship the same size machine, Nowadays they are more likely to send a laptop and possibly a docking station, so it's a lot more portable (although I prefer to do without those too).