BroadLink sells the RM4 pro and RM4 mini remote hubs and the S3 Smart Hub.
The RM4 pro adds 433 MHz fixed-code RF to infrared, and the RM4 mini is infrared only. Home Assistant supports both RM4 models.
The S3 Smart Hub connects up to 8 BroadLink devices and works with Alexa, Google Assistant and IFTTT.