An NUC is the other option. Keep an eye out on ebay as they come up reasonably often. Be aware that some of the Lenovo ones in particular have pretty underpowered processors so have a search of them.
Or if you can be flexible on the Windows 10 requirement you could try a raspberry pi.
Oh hai!
Can anyone recommend a really cheap tiny pc, preferably with WiFi, ssd, can take 2 screens kind, run windows 10. Kidd of like the Lenovo Tiny series. Second hand is best. Where would one find such an item?
https://www.lenovo.com/gb/en/desktops-and-all-in-ones/thinkcentre/m-series-tiny/c/M-Series-Tiny#compareSection