A nice touch is the PCB power relay's clear markings that help quick testing and troubleshooting.
New Erie Vt2223 Valve,2-Way,1/2 In Npt,3.5Cv
The Savant Racepoint RPE brand carries a steady presence that many relay users appreciate over time.
I like how the NVX label is printed cleanly, so it does not look cheap or faded over time.