CoCalc
CoCalc is a sophisticated online workspace
Fully managed Python and R Statistics environments provide a lot of packages/libraries out of the box. It is also possible to edit LaTeX files and R documents right inside your browser.
A full Linux terminal and an environment to run graphical applications complete CoCalc as a very versatile platform.
Beyond that, CoCalc is made for teaching a class online! Avoid the hassle of installing software on every student's machine and help your students more precisely by collaborating on their notebooks.