Newegg has one of the cheapest X370 boards I have seen in stock :
X370GT5 model was $149 and now is on sale for $119. This deal is for X370GT5-NF.
Took me a while to figure out that NF is "no fan". Also eligible for free shop runner.
X370GT5 has 3 star reviews but I believe it is due to lack of bios updates. I grew up on Biostar and now want to give them another chance after buidling on Asus, MSI, Gigabyte and ASROCK.