Answer

Besides correct form factor support, chassis should have extra space near motherboard bottom side area.
MSI adds extra PCIE_PWR1 connector on motherboard bottom side for better system stability when using multiple or power hunger PCIe devices.
It is recommended to connect PCIE_PWR1 to power supply under such scenario and the extra space is advised for easy PCIe power cable insertion.
You may choose below MSI case with solid compatibility,
MAG PANO 100L/100R/120R
MPG Gungnir 300R/300P
MEG MAESTRO 700L PZ