I want to upgrade my telescope for astrophotography but I want to be able to switch between visual and astrophotography mode easily, is there any way to do this? my setup is a fujifilm x t 30 with and az gti goto mount
You can use what you have to start experimenting. You don't talk about lenses but with a fast one and short exposures you can certainly start learning.
You can look at Askar SQA55 which is a good refractor and also a low priced one. More importantly in your case it also doubles up as a Telephoto Lens on your Fujifilm camera . It is a 55m f/4.8 Petzval design and am using it myself.
With your Sky Watcher AZ GTi mount it should be good to get some good exposures