Honestly, motherboards are usually where I go mid-upper tier (rather than my usual blow the bank on top of the line stuff).
I'm waiting on the 9xxx series Intels before I upgrade my set again (and might even wait longer because there still is no new RAM generation on the horizon), but I'm currently OCing an i7-6700k (2 gens back) @ 4.8 in an MSI Gaming Pro Carbon Z170, which was like a $250 mobo at purchase.
I like MSI and ASUS for motherboards typically. I've tried Gigabyte & EVGA and had failures from both multiple times. I haven't had an MSI let me down yet, but the most recent MSI board I bought was about ~6 months after I got the 6700k, wherein the ASUS Z170 Pro (~$240 at purchase) failed to boot. This may have been due to a PSU issue but I ended up replacing both at the same time.
So basically, for the last 17 years the record for End Of Life success for motherboards for me is:
MSI - 2/2 (natural retirement)
ASUS - 2/3
Gigabyte - 1/2
EVGA - 0/2
Assuming you build on the Z370 chipset, the latest Gaming Pro Carbon would be my recommendation:
https://www.memoryexpress.com/Products/MX68577 - $275