There are a few things you can do to find out which atlases have which atlases. In AFNI, the easiest thing to do is to look at the template you have and see which regions are at the location you click on in the GUI with the whereami functionality. Right-click on the image to open up that interface.
Programmatically, there are other ways - like the ones mentioned here:
https://discuss.afni.nimh.nih.gov/t/locate-atlas-datasets/501/4?u=dglen
To see which atlases and templates are in which spaces, you can use "whereami -show_atlases" for all the atlases and templates, as shown in this previous post: