I feel that if any 2010s show is to get a rep in NASB other than the already-featured Loud House and Korra, it will probably be Fanboy & Chum Chum (unless you count Barnyard) - their show is looked upon fondly with hindsight compared to the rest of the 2010s lineup, but its early cancellation also feels a little more justified given how loathed it was upon debut unlike Harvey Beaks or Welcome to the Wayne, which are shows people like and always have liked, but drawing attention to (and therefore indirectly drawing attention to the treatment of) would be bad for the Nick brand unless there was a megaresurgence with internet communities and fan conventions like there was for Zim.
If you do the actual research, Waluigi is an easy contender as one of the strongest characters in Mario lore if you go by some shounen anime lens.
Jigglypuff is from a series that's far more shounen and is very much an irrelevant meme and low tier unimportant filler monster that only exists to be a worse Clefairy in the lens of her own series but the people that tend to whine about Waluigi never say squat about her and even when they do, all they can point at is how low effort she was to include and her anime popularity which is exactly what Waluigi has: popularity.