My mom recently moved in with me. We've been watching Lost in Space and The Book of Boba Fett together. Any genre shows that are mom friendly (mild language, no sex or nudity) you can suggest would be helpful. She has trouble with non American accents. She doesn't really care for superhero shows. We will certainly watch Strange New Worlds when it starts. I don't have Apple TV + but I have the other streaming services.
So, there's a couple shows you might try.
Eureka - (Peacock and Amazon Prime) a generally positive show about the sheriff in a town full of mad scientists.
Leverage - (IMDb TV) not exactly sci-fi, but has a bit of high tech to support its premise. Excellent show about a crew of theives and grifters using their skills for good.
Librarians - (Hulu) There is a Library that holds magical artifacts of legend and history, to keep them from falling into the wrong hands. The Librarians are the ones who deal with the problems they cause, and bring them back for safekeeping. There's a series of made-for-TV movies starring Noah Wyle that precedes the series, but it isn't strictly necessary.
Babylon 5 - (HBOMax) Future space opera, in which the war between light and dark plays out on the galactic stage, amidst several varying alien cultures, focusing on events on the last of the Babylon Stations.
The 4400 (original, 2004, Netflix) - across US history, 4400 people are abducted, and all returned at the same time to Seattle, many of them having gained super powers. Note - this is
not a typical superhero show - there's no capes, no massive battles of people who are nigh invulnerable or anything. It is more like, "Hey, I get visions of the future" and "Hey, I can heal people".
The 4400 (current, CW) - similar premise, but with a decided bent toward social justice - most of the 4400 returnees are of various minority communities. This is new, so I don't know if it'll go beyond the first season.