Smash is back in a big way with Super Smash Bros. Ultimate. It will have every fighter from every Smash Bros. game including Ridley from Metroid (see the video above).
You can use a Game Cube controller and all Amiibos can be used.
There are also some changes and tweaks to the mechanics that you can learn about, along with everything else about the game, in this 25 minute video: https://youtu.be/L93H7YC-83o
Super Mario Party
This one is interesting. A bunch of new, fun looking mini-games as you'd expect, but this one brings in extra functionality if you use multiple Switches. The downside being that to use it, you need multiple Switches but...