Wireless keyboard

I currently have a pro micro controlled keyboard. I wanted to know if it would be possible to convert it to a wireless keyboard. Is it possible to connect a Bluetooth USB Adapter to it via a OTG Adapter and have it connect to my computer?

If not can you recommend any compact options.

Thanks in advance.

Is it possible to connect a Bluetooth USB Adapter to it via a OTG Adapter and have it connect to my computer?

No. The USB connector of the Micro is strictly a slave implementation not usable in a master setup.

If not can you recommend any compact options.

Describe how you think this should work. Do you want to connect a Bluetooth keyboard to your PC? In that case why not connecting the USB-Bluetooth adapter directly to the PC? Or do you plan to connect a wired keyboard and use Bluetooth for the connection to the PC? In that case forget the Micro and use an ESP32 instead.