The best family games like Super Mario Odyssey are Super Mario 64, Astro Bot and A Hat in Time. Below are 8, each with the reason it is here — and, at the end, what filtering to family costs you.
Filtering to family means the game has to work for a child and an adult at the same table without either of them being bored. That is a much harder design problem than a difficulty slider.
What you get: Something you can put in front of anyone. The best family games make the skill gap not matter rather than pretending it is not there.
What made Super Mario Odyssey worth playing in the first place is covered on the full list. This page is the family part of that answer, and only the family part.
The original, and its moveset is still the deepest thing about it.
The only recent platformer with as many ideas per hour.
The best indie take on the collectathon, and very funny.
Idea-per-level design at its absolute peak.
Ability-swapping platforming that keeps changing your verbs.
The classic collectathon, and denser than Odyssey with things to find.
Every level is a new concept, executed properly.
If open 3D traversal was the appeal more than the platforming.
Edge. Family games rarely go anywhere uncomfortable, and a few of them are too generous to hold an experienced player for long alone.
Specifically, these are strong answers for Super Mario Odyssey that are not family games, so they are not on this page:
The full list is on games like Super Mario Odyssey — 9 picks, no genre filter.
Super Mario 64. The original, and its moveset is still the deepest thing about it.
No. Super Mario Odyssey released on the Nintendo Switch, but a recommendation is only useful if you can play it, so the picks above span platforms and eras. What they share is the genre and the reason.
Age ratings cover content but not difficulty or frustration, which is what actually ruins a family session. Five minutes of unedited play footage tells you more than any rating.
With mixed ages, co-operative usually wins. The competitive ones that work are the ones where being in last place is still entertaining.
By hand. Each pick was written for the full Super Mario Odyssey list first, on what the game actually does, and this page is the part of that list that is family — never a genre tag lookup, which is how "best racing games like Super Mario 64" used to be a page on this site.
Or read the family guide for where to start in the genre generally.