Which sci-fi titles (movies, books) do you consider comforting, cozy, something you come back to from time to time? For me, I guess it is The Matrix. Still holds up to this day, gets better with every re-watch, and gives me a sense of peace when I need it.
Here’s some I consider cozy:
And if you like to listen to books, “Quarter Share” is available as a podcast: https://chartable.com/podcasts/quarter-share/episodes
Edit: It varies by book, but many chapters of “The Vorkosigan Saga” are downright cozy.