Does anyone have recommendations for garage door and man door sensors?

I've got two garage doors and a man door that I would like to monitor, and I wouldn't mind having a couple of occupancy sensors.

It doesn't need to connect to any smart home stuff but that wouldn't be a bad thing, either.

I actually would be interested in some window and door sensors for other places as well. Maybe it's time to initiate a Home Assistant installation to do some automation...

It would be nice to know we forgot to close a window before bed.

@douglasvb Yeah I think I’d be looking at Home Assistant with commodity Z-Wave/Zigbee/whatever. I have a bunch of Ring sensors that I bought before they became part of Amazon. I’d like to switch away and that’s probably the way I’d go.
@dmnelson we've got a bunch of echo devices that I would like to move away from but my 👸🏼 really likes them especially for syncing music across the house. So we're in a similar boat to you in terms of the Amazon issue.