Where to host a MEAN / MERN stack in 2021? [closed]

I wanted to get back into web development and do a personal project. As far as I know, MEAN / MERN are still on top of the list of technologies to choose from.

Unfortunately, I have no clue about where to host such an application. I definitely want a hosting option with command line capabilities and where I kind of have "my own" machine and can play with it a little bit.

I considered AWS but I didn’t totally grasp their pricing strategy. Another option I found via Google was DigitalOcean which starts at 5$ / month.

Ultimately, I also want to be able to deploy other stacks, such as using .NET core for backend or Flutter for frontend (and use PostgreSQL instead of MongoDB etc.), maybe even use a Docker container network. Is this possible with DigitalOcean?