I've been noting any automation hubs, whenever I hear of them. So this list is just a rough note on what's out there. Some of these link online office platforms, but not home devices, so they may not all be appropriate. I also might have missed some.
WebCore 4 Smart Things
Macrodroid, runs on phone, links to IFTTT
Node Red (link hardware devices)
automate.io (enterprise, links apps)