You will find that the unbranded/generic finish matches other components, making wiring jobs more cohesive.
Power Relays 30A SLA-05V 09V 12V 24V 48VDC-SL-A -SL-C PCB SPDT 4/5/6 Pins T90
A nice touch is the matte finish on this unbranded relay, which resists fingerprints and looks tidy on aYou will find that this unbranded relay is easy to source, and the price stays reasonable for small projects.
You'll see that the unbranded/general design keeps things simple, and it blends into different setups without drawing attention.
A nice touch is how the unbranded brand uses a bright indicator LED, so you know at a glance when it's active.