If you are looking for a basic starting point in astrophotography, a smartphone eyepiece adapter may be a good option. These adapters along with a dobsonian or other non-tracking telescope can provide nice video and images of the Moon and Planets.
I’ve found that it is best to connect the adapter to the eyepiece near a light source before putting the eyepiece into the telescope. This allowed me to adjust the iPhone directly over the eyepiece at the right distance and angle to capture the light.
Most of these adapters can be found on Amazon for around 20 dollars. If you are interested in making some early steps into astrophotography, I would encourage you to check out this line of products.