I was going to build a HTPC, but decided to just use my 'main' PC to do everything including streaming. So now I have some parts I don't need:
AMD Ryzen 3200G CPU : $100 firm (current lowest price on PcPartPicker $125 + tax)
https://www.amd.com/en/products/apu/amd-ryzen-3-3200g
Coolermaster Elite 110 micro ATX case (basically a 1 foot cube, and can accept full size PSU and most GPUs): $40 firm (current lowest price on PcPartPicker $65 + tax)
https://www.coolermaster.com/catalog...-itx/elite110/
Everything is brand new, sealed in the box.