Links

PSU wattage calculator

https://www.newegg.com/tools/power-supply-calculator

Computer part compatibility tool

https://pcpartpicker.com/list

CPU benchmark database

https://www.cpubenchmark.net/

GPU benchmark database

https://www.videocardbenchmark.net/

Hardware guide and reviews

https://www.tomshardware.com/best-picks

Repair guides

https://www.ifixit.com/