If you still want to now more about it, there are a lot of great options out there depending on your specific needs and budget. I've had a great experience with the ASUS ROG Crosshair VIII Hero (WiFi), which has a lot of great features like WiFi 6, 2.5G Ethernet, and high-quality audio. However, it is on the pricier side, so it might not be the best option for everyone.
If you're looking for more options, I'd recommend checking out finalratings.com
. They have a lot of great reviews and ratings for a variety of motherboards, including ones that are compatible with the Ryzen 7 3700X. It's a great resource for anyone looking to build a PC or upgrade their current one.