Sakura is the closest to requiting the love for Naruto tbh. She didn't even deny that she was his girlfriend and instead told him to converse his energy (he was only talking) when she could of said, "no, I'm not".
Naruto has officially friendzoned Hinata to the point of extreme. Avoided her confession, admits he likes Sakura right in front of Hinata ect..
As for Sasuke. It's hard to know what's going through his head atm aha
I agree, it will either be her and Naruto or her and Sasuke. Only because before he cut their bonds, he was growing close to Sakura and cared for her (I think that was also stated as fact) so now that he's good again he might finally return her unending love that pulled him from the darkness before.
Sakura's growing affection for Naruto is also to be taken into consideration. He's loved her as long as she's loved Sasuke, but she shows little moments of caring for him deeply and deeper than just a friend.
Lastly though, when she told Naruto she loved him, he said he doesn't like people who lie to themselves. Which means she was convincing herself she loved Naruto romantically, when her love for Sasuke was still there.
Kishimoto has really made it tricky to guess! lol