Sonoff Zigbee are decent, but I’m finding the range is really terrible.
My go to is Xiaomi, which doesn’t join and stay joined directly to HE very well. For years I was joining them to an Aqara Gateway and then syncing back via HomeKit automations.
Now I’m using this method. Much simpler and supports many more sensors and even cloud integrations. No reservations about suggesting it to get a lot of inexpensive devices into Hubitat for easy and powerful automation.