Undoubtedly, not everyone enjoyed the Boruto period. Some believe that because Naruto fulfilled his goal of becoming Hokage, the franchise should have just stopped. Others think the follow-up stories involving his son and the younger generation, like Mitsuki and Sarada, just need to be more engrossing.
It's a contentious subject, but one thing is certain: the quality of the Boruto manga and anime is rising. However, anime lovers are now enjoying more of Denji's exploits while having a demon within, similar to Naruto and Kurama, due to Crunchyroll earning another success with Chainsaw Man. The guidelines for the Naruto franchise's priorities have been established, and they could readily chart out better adventures than Boruto's crew in Konoha.
A Jinchuriki Story is Being Told by Chainsaw Man
In Naruto, Kurama, the Nine Tails Demon Fox, was placed in baby Naruto by his parents, making him the ultimate Jinchūriki (aka human vessel). Only he had the power to restrain the beast, and in time they'd become friends. Such was the depth of Naruto's heart that he'd later house the eight other Tailed Beasts as part of the war against Kaguya, who wanted all the chakra back from Earth in a move that would have basically killed everyone.
Denji is walking a subverted path related to this concept in Chainsaw Man, as fans are currently observing his bond with Pochita. But the dog-devil is the one who pushes for the union, saving Denji from death so he could become a weapon and make money. It wants him to get out of poverty and fulfill his dreams, so even though its soul is trapped in Denji, Pochita is garnering happiness by living vicariously through him. And as they partner up, Denji cuts a scarier, violent path as a bloody killer of demons than Naruto did fighting off evil shinobi and aliens. And make no mistake, it's a visual spectacle that Boruto rarely has.
Other Jinchuriki Tales Should Take Center Stage in the Naruto Series
Naruto can create a spinoff diving into the past, detailing how other Jinchūrikis operated in an intimidating, gory light. They were weapons of mass destruction, after all, with immense power. But apart from their destructive force and how they became mercenaries or assassins, a spinoff can expand more on the bonds themselves. Not everyone had that camaraderie and dynamic Naruto and Kurama had, as seen with Killer B and the Octopus-like Gyūki (the Eight Tails).
Thus, stories involving Blue B and Gyūki can show how the Raikage used this WMD in years prior. Fans can even learn how Bunpuku used the One Tail/Shukaku that Gaara would eventually host, creating a darker story as it was a lot more bloodthirsty. Given the advancement in animation --- which Boruto and the Naruto movies did well to illustrate -- seeing these beasts and their hosts cutting loose would add to the Naruto mythos perfectly, allowing fans to learn more about the hosts not seen before. More so, this direction explores concepts fans already love, which would be visually spruced up to show other unique pairings outside the Hidden Leaf.
In time, the beasts -- apart from Gyūki -- were freed and sent to the wild after Kaguya fell, with others like Shukaku being protected. This means a series can focus on the present day too, where they're being hunted again by Akatsuki-like groups, or where there's a selection of new hosts. The latter would be safer, as the chakra beings would be protected by heroic shinobi experts like Naruto.
Granted, many of the beasts don't like humanity as they only trust Naruto, so there'd be a lot of fodder to explore with the seven beasts out there pondering if they need vessels after Kurama died. This can easily shape an anthology or a couple of seasons, allowing the anime to bring these majestic creatures to light once more, rather than become a side-story or filler in Boruto like Shukaku did.