TechPowerUp posted a review on the Biostar Racing Z370GT6
A quote from the article:
Biostar's Racing Z370GT6 is a cost-effective motherboard for Intel's newest mainstream platform. It still features two PCIe 3.0 x16 slots connected to the CPU, which means multi-GPU setups are possible. Also included are two M.2 NVMe slots and a heatsink to keep those drives cool.Biostar Racing Z370GT6 Review @ TechPowerUp