Online Office suite, easy to set-up?

I've been using the Google Office suite for the past 10 years and been looking for an alternative for a while. Degoogling is a hard process. I mostly use the office suite and the files storage. I teach in college and Univ, so I need to be able to access my files and presentations from different computers. I curently have 200gb storage and would maybe need an extra 200.

I have been able to try Nextcloud with the office app and, appart from a few speed issues, it was working really well. But the free accounts I manage to get is limited to 2gb and their main services seems to be buisnesses focus, and not for single users like me. I'm looking for a cheap, easy to setup cloud solution, that would allow me to use the online office suite, read audio and video files that are stored on my cloud, and maybe do web hosting to transfer my site. Can someone point me to that kind of service? Thanks