There are many generative AI applications and tools available; more appear almost daily. The following two resources can provide directories of popular tools.
Generative AI Product Tracker - produced by Ithaka S+R, this resource lists generative AI applications that are commonly used or marketed towards higher education.
Artificial Intelligence Applications for Social Science Research - developed by researchers at the MSU Social Science Research Center, this downloadable resource provides details on over 250 AI applications.