The relay offers a satisfying mechanical snap, and what stands out about it is that the sound helps you know it worked.
Telemecanique CA2-FT 111 380V50Hz 440V60Hz Relay
A nice touch is how the relay sits snugly in the socket, so you won't worry about loose connections during long projects.
What stands out about the TimeSaver brand is how straightforward it is to install and use in real projects.