Bluetooth 5.0 dongle

I am buying a new bluetooth dongle and don't know which one to go for, there are a variety of firms and I just don't know which is best. I'm looking for a 5.0 dongle that's fast, fits my budget (20$), and is small (like a simple usb). Any help? via /r/tech https://ift.tt/2P9Pia2