Tom's Hardware published a review on the Asus ROG Strix X370-I Gaming
A quote from the article:
X470 availability does not mean we get to neglect other platforms within the Ryzen multiverse. Do innovation and design twists put Asus's Mini-ITX X370 ahead of the rest? The Asus Republic of Gamers (ROG) Strix X370-I Gaming picks up where a preceding motherboard, the Biostar X370 GTN left off. While that board wasn't able to leverage the strengths of AMD's X-Series chipset (to the point were B350 would have been a better choice), the ROG Strix X370-I leverages the chipset's high speed I/O for big-board features like M.2. Add some serious overclocking capability, and you're looking at a tremendously powerful, yet amazingly small, platform for your AM4 processor.Asus ROG Strix X370-I Gaming Review