Welcome to the forum knasterboll

The best ones I know are the Omron G2R Series - the G2R-1-E 12DC to be specific,
I think (double check the dimensions, pin spacing, coil voltage etc yourself). Almost certainly better quality than Sunyou, and being transparent, you can keep an eye on the contact condition. If there's a suppression capacitor across the contacts it might be worth replacing that too, but it's probably just wear-out.
https://uk.rs-online.com/web/p/non-latching-relays/0366293/