Because it's unbranded/generic, you can pair it with various sockets without visual conflicts.
24V Programmable Multifunction Digital Relay Module – FRM01
The G3P-210B is the model you will find that many hobbyists keep in their toolbox for quick fixes.
You will find that the Potter & Brumfield relay has a straightforward footprint that many boards accept easily.
You will find that the Potter & Brumfield sits flat, with even gap on the plastic housing.