Secondary Relay Recommendations For Creative Uses

Folks,
I don’t know if this is the correct thread to post this question, so please let me know if I need to move it, or if you are a moderator, just move it appropriately within the backend.

I have a standard OpenSprinkler setup, but I needed one more valve. I purchased the expansion module, and it works great! Thank you!!

I now have a lot of extra trigger capability and want to trigger other things programmatically. Ideas include replacing my legacy mechanical 240VAC pool timer; on/off bird feeder fountain for my wife; low voltage landscape lighting control; granular 120VAC attic fan control (we live in Arizona); and countless other ideas.

I have searched the forum and read several creative posts. My question to the group is…

What manufacturer/model relays have proven themselves to be both compatible with OpenSprinkler and reliable under most conditions?

Thank you for any guidance provided.

Mike