RF integration now that ThingShield has been discontinued

Does anyone have any good ideas? I want to control my RF fans but can’t find any ThingShield boards anywhere.
I saw some instructions for a small web server and API but not clear enough.

I’ve seen people integrate Broadlink. The beauty here is it does RF and IR.

Here’s the Github link.

Check the instructions. They link to Amazon to buy the device. It’s sub-$40.

What kind of RF? 433mhz?