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.