If they got saved then Kakashi should get the same one he always had since he already have skills in using it but Kakashi already said that eye was starting to go blind so it wouldn't even last him for much longer since he had to be closer to Madara to use Kamui on his orb shield. Sakura would be great to have the other eye since it would let her see through jutsus, help in analyzing, copy jutsus, she was said to be a genjutsu which is a good combo with the Sharingan, she's a taijutsu user who needs to get in close to do the damage which the Sharingan would help will plus going intangible will help her get in close and not be phased by other jutsus.
Sasuke isn't going to get it because he has a EMS and Rinnegan, why would he go to a lower level and not use Itachi's eyes which is the only thing he has left from Itachi? If he did take one of Obito's eyes then it might become a new EMS (Sasuke's MS+Obito's) but he still will be giving up one of Itachi's eyes.
Naruto getting one of Obito's eyes would be OP in Naruto's favor since he could become Intangible and have a S/T jutsu that Minato said was better than FTG plus have base speed and reflexes that even Kaguya praised. He would be able to copy water, earth, fire, and lava jutsus since he has access to those chakra natures which you need to have to copy a jutsu. Sasuke got DNA from Juugo and Hashirama so why can't Naruto get a Sharingan? Sasuke got Hashirama's DNA after the Transmigration was over and Obito isn't a reincarnation of Indra so it wouldn't make either one a complete Sage like Madara was.