Well you limited suggestions to the Switch so it's only natural....
Honestly I didn't mind Super Mario Sunshine from what I've played of it so that's something, I do own it for the Gamecube though so it's not a Switch recommendation. Just about every other 3D Mario game once Super Mario 64 came out I've just disliked, mostly I disliked the way the games control and would rather go back to the older 2D titles.
Metroid was never really a frequent series, sequels usually only popped up once every several years until the mid 2000's when it somehow became popular and tons of games came out. Most of the popular games with Metroid were portable entries. Then Metroid: Other M came out and soured the series so Nintendo packed it up for awhile, but they're apparently working on Metroid Prime 4 for the Switch so maybe it'll get popular again. I never got into the 3D games either so I again tend to prefer the older entries. It's weird how Metroid started this style of gameplay but most people are wanting new Castlevania games to get this type of game, I haven't heard the same demand for new Metroid games.
I'm not that desperate for the Switch because it seems to use rechargeable batteries for the controllers. It just feels like a console that has a shelf life of under 10 years like with any cell phone or tablet. Maybe I'm wrong about the batteries and they're both easy to replace and easy to buy replacements, but I don't think they are. I don't have space for another console either so I didn't see the point to start buying more stuff, though there are various Switch games that actually interest me like the Shantae games as an example. There are more games on the Switch that interest me than both the Wii and Wii U have combined.