Here's a list of places you can find the general handles online.
The writer has been aware of the project protocol of Gemini for a couple years, and has been watching the general community around it grow over time. Think Gopher but with TLS encryption and a pared back Markdown formatting for general text. You can browse gemini capsules (sites) using a gemini browser such as Lagrange for the desktop and Ariane for Android mobile devices. More information on gemini can be found on the Project Gemini website.