My SmartThings Hub is (slowly) starting to error out more and more. I'm doing a soft reset monthly to keep everything up ( I did a hard reset about a year ago when I moved), which works, but I think it's time I start learning a new hub, preferably one not discontinued. My original plan was to put everything in Home Assistant when this time came, but a.) I really like it as my home coordinator with my custom scripts and addons and I don't want to mess with what is working right now and b.) while I'm getting the hang of running zigbee on there, zwave is in progress and thread...not really working most of the time.
So. I need to buy a general all-protocol hub; any recommendations that are fully compatible with Home Assistant? One with custom scripting would be a huge plus; I miss doing that in SmartThings.
Are you on Zigbee or Zwave? It's hard to tell from your post. You may have hit the limit of either network being effective for an aging hub, or the distance between telays. The hardware of the hub itself is probably fine as there aren't any moving parts in it.
As far as what to move to, HA is capable of being the "hub". You don't need a separate piece of hardware as the coordinator, just an adapter that talks to whatever devices you have. Get a dongle that speaks whatever you have, and there is an HA add-on for it.
For the future, I'd start thinking about moving over to Matter. It's got the biggest uptake, HA is already working with the devices flawlessly, and the devices themselves can be managed by remote coordinators if that becomes a need for you. I'm not sure what Samsung is committing to for the future as far as Smarthings in general.
Also, if you're moving off the Smarthings hub, I don't think there is a simple migration tool for already existing devices in HA bound to an external hub, but maybe someone else here knows. You'll probably end up having to redo everything piece by piece.
I use zigbee, zwave, and thread. I've migrated half my contact sensors, a few motion and presence, and two rooms of light bulbs to thread, which HA is...questionable on, hence beginning my search.
Well Thread has practically boxed itself in as a secondary protocol, so I think you're safe there. Sonoff adapters do both Zigbee AND Zwave I believe, and then you can tie it all together with HA add-ons, so I think you're fine.
So far, the OTBR on HA isn't working, but...if it's an age and device issue, it may be migrating the zigbee and zwave over to HA and leave my SmartThings for my OTBR devices will work for now. That may at least buy some time to work out how to make the HA's OTBR work.