I will just quickly lay out why I picked what I did.
I7-8700K: Great reviews and planning on OCing in the future
Cryorig H7: Great Reviews
ASRock Z390 Extreme4: I know I dont need the Z390 chipset but this MOBO was less expensive than the Z370 version. So why not.
G.Skills Trident Z RGB: Was on sale and thought RGB was cool
Western Digital Blue 500GB: Good deal on 500 gigs
MSI RTX 2070: I have a 1440p screen and wanted to make sure I had myself covered. The OC version was only 10 bucks more than the standard card.
Cooler Master H500: Great reviews
EVGA SuperNOVA G2: I used a tiered list I found online and picked this one based on quality. I know not to skimp on a power supply.