did you look at the specifications?
https://www.asrock.com/mb/Intel/B360M-HDV/index.asp
6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4 & SATA3)
so, great news! you can use an PCIe NVMe M.2 on that one Gen3x4 slot, or if you put an SATA M.2 in, it will also work, but not as fast and as good
this one is excellent, it's my pick for an PCIe M.2 drive, best and fastest today available.
https://www.newegg.com/Product/Product.aspx?Item=N82E16820147690&cm_re=PCIe_NVMe_M.2-_-20-147-690-_-Product