I used PC Part Picker to build my PC.
Since my school days, I've enjoyed bricolage/DIY crafts. Some time ago I built a PC -- by making use of PC forums and YouTube videos -- basically the Internet. The process was a bit scary as it was my first time building one, and I read about how parts may not be compatible with each other. A friend suggested this website and r/buildapc, which got rid of all my fears. Here's a clip from when the PC did not boot the first time!