Welcome.
You can search for supported integrations (things that work with home assistant) here: Integrations - Home Assistant. So, search for the vendor (ex. Fox - there is no integration) to see if an integration exists. But, just because an official integration does not exist does not mean you can’t use the device with Home Assistant (see FoxESS to Home Assistant Integration Options (H1/AC1&AIO)). The point being that you should also do a Google search and also see tips to search theses forums.
Once you are happy with if your devices can be integrated into Home Assistant, then you can think about the hardware you may want. There is some great info here: