Kakashi, like 4th did with him hired an anbu to look after hinata while she was pregnant.
He was one of the most worried person for hinata and was there personally to witness boruto's birth.
Also he canonically babysat Boruto, so him and Boruto defo has a grandpa and child type relationship lol. Boruto calls him "old man".
Itachi would have been sarada's favorite too like Sasuke lol and Sasuke would be jealous of this.
Also Itachi, would been the best uncle for sarada and would been the one to talk to her about the sharingan (assuming the massacre here didn't happen). I think he'd train her to resist genjutsu more.
Neji would have been also the best uncle, time travel arc he gave advice to Boruto <3 with neji around, Boruto would have been more of a genius and mature cause its implied boruto is smart as him.
Also neji would train himawari on her byakugan. He'd laugh his ass off that Naruto got knocked out by a toddler with the byakugan lmao.
