My project incorporates one of those LM2596 adjustable buck converters in the power supply section (why? because they are cheap, the two different batches I've gotten all have worked, and I already have enough wires running around under my model railroad that I don;t want to have a 5V bus, a 12V bus, and maybe more - just one, and for boards that need lower voltage, use these modules to drop the voltage). I measured and created a footprint to put on my PCB, got the samples, works perfectly. So far, the only thing I have to make them removable are male and female pin headers. The male parts are fine, you can snap off singles without breaking every other one, but breaking a strip of the female ones almost always ruins the last one, so getting 4 individual ones off a strip will probably cost at least 4 in wastage.
I suppose I could just solder pins to the buck boards, and solder them directly to my PCB, but I'd like to be able to unplug them and swap in another, but that requires some other sort of pin and socket. Any suggestions? Or just forget it and solder directly, since it's only 4 pins to desolder to remove one if I have to. The male header pins work perfectly for this, the plastic stands the buck board off the main board very nicely.