Sai and Ino mostly developed in Sakura Hiden, Shikamaru and Temari shown on Shikamaru Hiden and Gaara Hiden, Naruto and Hinata on Boruto and the Last, while Choji and Karui are said to be dating on Sakura Hiden. Sasuke is usually gone in his travels so he hasn't made contact with Sakura yet.