Upgrading from Pi3 - NUC recommendations to run HA and Windows

Hi,
My Pi3 keeps rebooting - I guess it’s time to upgrade.

Read that NUC is a good option

Want to run HA and ideally windows so it can be used for a PC for a child (should be able to handle videos streaming)

Any recommendations on specs or even specific product would be appreciated

Saw this but not sure it is good enough https://www.amazon.com.au/TRIGKEY-Speed-Mini-PC-Business/dp/B0CP5QTMKL?th=1

This is more expensive and same, not sure if it’s good enough or too much? https://www.amazon.com.au/Beelink-5700U-Processor-Computer-Integrate/dp/B0C99CRP1X

Or should I go Pi4 and buy a PC separately?

Thank you