A nice touch is the gentle click sound this unbranded relay makes, giving clear feedback when it switches.
12V 30A 5-Pin Automotive Relay for Fuel Pump, Cooling Fan & Headlight – 2-Pack
Many users like that the Formiden name is shown right on the relay, making identification straightforward.
The Formiden brand is right there on the relay, and that makes sorting through spares a little easier.