Preferably in the high fantasy or sci fi genre.
I enjoy playing games like Chronotrigger, Tales of Symphonia, Witcher 3 (easiest difficulty), Mass Effect (in Story mode), Outer Worlds (in Story mode), etc.
Basically, story first, mechanics second. What’s your fav?
As has been mentioned already, Disco Elysium should be right up your alley. Not exactly Sci-Fi but has very interesting alternative reality world building and suits your wishes perfectly otherwise.
Don’t be afraid to be wild and weird in dialogues and remember that failure is often just as good or better as success in this game (they pioneered a fail-forward type design). Basically, treat it like an interactive book and you won’t be disappointed.