If there is only 1 Virtual Console game I'd highly recommend getting before the Wii U eShop shuts down forever, it would be Super Mario 64 DS! I think it's safe to

Wii U Post Mortem: Why It Failed

A (Sort Of) Positive View on the 3DS and Wii U eShop Closures

Alex Aniel on X: Bought Super Mario 64 DS on the Wii U Virtual Console out of morbid curiosity and… it's not bad at all, actually. / X

Not Used Your Wii U In A While? It Might Be Dead

The Importance of the Virtual Console - Talking Point

So now that it's been some weeks since the eshop closure, has hype/buzz basically died around the system? At least, outside 3ds centered groups? Like, now It's kinda back to that stasis mode like how it was before the announcement of the eshop closure

Super Mario 64 DS heads to Wii U tomorrow - Polygon

One final goodbye to the Wii U eShop : r/wiiu

The 3DS And Wii U Games You Should Buy Before Their eShops Shut Down - GameSpot

Virtual Console Games You Should Buy Before The Wii U & 3DS eShop Shutdown