If you like world building then check out Brandon Sanderson and his cosmere related books. They all play out within the same cosmere and all build upon that same world with different stories. I started with Mistborn and think that is still my favourite but it is a hard decision as there is a lot of good books / series.
You could also try Stephen Kings - The Dark Tower and then go down the rabbit hole of a plethora of other books that all happen within the same world and have various different connections to The Dark Tower books and midworld.
N.K Jemison - The Broken Earth trilogy was pretty decent in terms of building the world it was set in and I think is pretty highly regarded for that element.
If you want a bit of space operas then I think Simon R Greens - Deathstalker books are really great and build a whole quirky universe for itself.