The Intel Core i5-9600K is the new king of mid-tier processors in Intel's line-up. It offers some solid performance figures for the price and while you don't need the most expensive motherboard on the market, spending more is a sure way of getting better quality components.
Top Pick
Staff pick
ASUS ROG Strix Z390-E Gaming
This isn't by any means an affordable motherboard, but it's a high-quality platform with all the high-quality components you require for a stable computing experience. It has support for some advanced overclocking, a great BIOS to get familiar with, as well as plenty of ports to hook everything up.
Budget-friendly
Gigabyte B365M DS3H
You don't require a Z390 chipset for the Intel Core i5-9600K, which allows us to recommend something like the Gigabyte DS3H if you want to save some money. It's a great board in its own right, just don't expect to push the system as far as more premium options.
Premium Board
ASUS ROG Maximus XI Hero
Should your budget be able to cover a high-end, enthusiast board like the ROG Maximus XI Hero, it's a worthwhile pick if you plan on upgrading the processor at a later date before the next generation comes around. You get amazing quality components, speedy dual M.2 slots, USB 3.1 Gen 2, and other high-end features.
Small & Mighty
ASUS ROG Strix Z390-I Gaming
The Intel Core i5-9600K doesn't throw out as much heat as more power-hungry processors, which allows you to comfortably install this CPU onto a Mini-ITX board. The package could then be installed inside a small form factor case.
Choosing the best Intel motherboard
With a new processor you're going to ensure two things are compatible: your RAM and, even more importantly, your motherboard. If I had to make a single suggestion for your Intel Core i5-9600K, it would be the ASUS ROG Strix Z390-E Gaming. This motherboard is a great value, offering pretty much everything you need for a powerful PC build. ASUS packed in high-quality components, stable overclocking enhancements, a great and easy BIOS, as well as some other handy benefits like dual M.2 slots.
When you're ready to take things to a whole new level with regards to build customization and unique looks, the ASUS ROG Strix Z390-I Gaming Mini-ITX motherboard is worth considering, especially if you have a small form factor case at hand.