Alternatives for the double WiFi busbar relay with signal switching

I'm looking for a way to make a double box relay however with signal switching, exactly like the sonoff mini has (GND + GPIO). From what I have found all double are phase switched. I need to control this with a micro switch with a load capacity of 0.05A/24V.
The Sonoff mini is ideal but it is single.
From what I have read e.g. Shelly 2.5 has GPIO leads but from what I have found they are connected under N and cannot be used during normal operation.
Do you have any advice ? two sonoff mini's i can't squeeze in....

I remember that here on the forum somewhere the author of the following project posted a PCB schematic - inCan module project
https://forum.supla.org/viewtopic.php?t=2188