You could try Dekko. They have DekkoLYNX, which is a secure (e2ee) video conference and DekkoVault, which allows secure file sharing, email, chat, and document sign offs. DekkoVault allows you to share sensitive information only with people, who would see it. Have a look at https://www.dekkosecure.com/videoconferencing and https://www.dekkosecure.com/dekkovault