Any list would become dated, as Amazon wouldn't want to put in the effort to frequently scour the internet looking for compatible devices, and vendors have a bad habit of sometimes not submitting their info to maintain such lists.
It should be noted that all the mentioned sensors require either a SmartThings hub or an Echo with a built-in Zigbee hub.
As to "reading comprehension", keep in mind you stated, "I have a bunch of smart home devices, most very established brands, including Amazon", indicating you didn't have a clue what type of devices were supported. When asking for help, being snarky with the only person that responded is a great way to discourage others from replying. Frankly, I was tempted not to reply at all, since there is a chance you will complain about this reply as well.
from Visonic. They're cheap and I've had mixed success with them. Even something like the thickness of an average rubber weather strip will prevent it from registering, but when you get one of them positioned just right they work pretty well.
Like the Visionic contact sensor, this isn't expensive and they are more dependable. One of the things that I like about both of them is that they also have a temperature sensor. I used to favor the Aeon MultiSensor but they are only Z-Wave and won't work without a SmartThings or Wink hub. And they're expensive.
Now that both the Echo Show Gen 2 and Echo Plus have local voice control capabilities with certain zigbee devices, which allows control of certain smart devices even when the internet is down. Does this mean schedule based routines will also execute when the internet is down? Essentially I am working on home automation projects that won’t depend on the network being online.
If if someone has the answer please reply! Thank you!