I would generally divide tools based on their applications
End to end Tutoring Softwares – These usually have features such as White Board, Communication, Payments Management, Appointment Scheduling etc and are
For example include Yo Coach, Tutor Cruncher
Standalone tools like
a) Communication (Audio, Video, Screen Share, Recording etc) – Zoom, LessonSpace
b) Slides – Google Slides
Applications that Cuts Background Noises – NoiseGator, Krisp
Hope this will be helpful and good luck.