"upgrade" - What is the best bang for buck to change from my current system - PC noob sorry...

Hi all,

New build or upgrade?existing parts:

• Existing parts/monitors to reuse? (List with models/links)

• PC purpose? (Gaming, editing, etc. List apps/games)

• Purchase country? Near Micro Center? (If not US, list local vendors)

• Monitors needed? (Number, size, resolution, refresh rate)

• Budget range? (Include tax considerations)

• WiFi or wired connection?

• Size/noise constraints?

• Color/lighting preferences?

• Any other specific needs?

Parts list:

Intel Core i5-8400

NVIDIA GeForce GTX 1060 6GB

16 GB RAM

MSI Z370-A Pro motherboard