The Expanse: Fairly hard science fiction with political intrigue and astronautic combat in a future solar system without interstellar travel. Complex characterization and a lot of dramatic moments.
Legion: Derived from Marvel Comics' X-men, but it's more a show about people with superhuman powers than a superhero show. The first season was a bit surreal; the second season is more so.
The Marvelous Mrs. Maisel: A young Jewish woman at the end of the 1950s discovers a genius for standup comedy, in a style akin to Lenny Bruce, and sets out to make a career of it. Actually as much drama as comedy, though her comedy bits are funny when they're meant to be funny and painful when they're meant to be painful. Suffers a bit from anachronism; the dialogue uses phrases that only came into use decades later.
The Orville: We were cautious about this, as its presiding genius is the man who made the loathsome The Family Guy, but it's turned out to be significantly better than that; its characters deal with Star Trek-like situations in a way that takes them seriously despite the humor.
And speaking of which, Star Trek: The actual original series, in the original broadcast order (except that neither of us wanted to watch "Charlie X"). It's fascinating seeing the classic tropes emerge one by one, the unevenness of the writing—but also seeing how often Starfleet had people of African or Asian descent in important roles; Roddenberry really was ahead of his time.