GIGABYTE B550M DS3H (AM4 AMD/B550/Micro ATX/Dual M.2/SATA 6Gb/s/USB 3.2 Gen 1/PCIe 4.0/HMDI/DVI/DDR4/Motherboard) https://www.amazon.com/dp/B089FY7QT1/ref=cm_sw_r_u_apa_glt_fabc_9HEF5H5RNAMJA474VQ63 would something like this be a good fit inside the case?
I 2nd Serenikill's recommendation, B550 as the chipset is probably a good choice.
If you are going for budget - this one has great reviews and is only $94...