This case will fit most micro ATX motherboards. This requires an APU, (CPU chip that includes graphics) as there is no room to use a graphics card. Also use lower power components so as to not overload the power supply. Best to use a motherboard with a 4 pin CPU power connector. There is space for one 2.5" drive.

Parts used for this:
APU: Ryzen 3 3200G (with Radeon Graphics only 65 watts)
ASRock B450M-HDV R4.0.
M4 x 90mm screws hold it all together, 4 required. M3 screws required to fasten motherboard.
80mm cooling fan (Arctic F8).
Power button.
Power supply: https://www.amazon.com/dp/B07TY121LT/ref=cm_sw_su_dp