Currently the cheapest B550 ITX board I can find - and with USB Type C connector.
$5 cheaper than their previous bundle deal here: https://www.ozbargain.com.au/node/607381
This one has a non-standard backplate so make sure you can fit your cooler on first.
Pay attention to the distance between the edge of the backplate and the graphics card slot. The compatibility issue is gonna be a big problem here.