So recently I've been trying to figure out a quick and easy way to add connectors to my PCB designs that don't have an enclosure. Here is a board that I made below (had to blur the circuit out, propriety due to proprietary info). I ended up making a separate double sided PCB which the connector mounted into. That PCB ended up sliding into a slot on the main PCB. I soldered both sides and it ended up being quite sturdy. Definitely going to do this from now on for test boards with connectors.