--Shaolan-- At the very beginning when Shaolan first transferred to Sakura's school, Sakura felt a little threatened by Shaolan. That didn't last very long, however, because she quickly thought of Shaolan as a good friend and persisted in this attitude long before, Shaolan even accepted her as anything other than a rival. After fighting many battles together, she considers Shaolan as a great friend who she can depend on and they have developed a close relationship with each other. In the end, Sakura falls in love with Shaolan...but it takes a lot of time on her part. ^^
--Tomoyo-- Tomoyo is Sakura's very best friend and Sakura is always greatful for her help (costumes, support, etc.) Though, Tomoyo's feelings towards Sakura is different, Sakura does love Tomoyo as a best friend but nothing more.
--Touya-- Sakura loves her brother even though, he constantly teases her. But what sibling relationship doesn't involve a little teasing. She cares for her brother a lot.
--Yukito/Yue-- Sakura has really liked Yukito ever since she met him and has been harboring a crush ever since. She even goes to school with her brother just to see him (sometimes involving engulfing her entire breakfast at one time ^^). She does express her feelings towards him but he helps her find out that she only loves Yukito like a family member. Sakura has a tiny amount of difficulty accepting this but in the end, she knows he's right. In Yue, she does not seem to harbor a crush like Yukito but she loves Yue just the same (like family). Ever since the judgement, Yue has been there for Sakura and they have grown close.
--Kero-chan-- Kero-chan and Sakura are very good friends and care for each other a lot. ...that's about it, I really can't elaborate. ^^ Give me a few more days to think about it. ^^
--Fujitaka and Nadeshiko-- Out of all the people, Sakura loves her father, Fujitaka the most. She admires him a lot and expresses this almost everytime she introduces or talks about her father. Nadeshiko, her mother, died when she was very long and so, Sakura doesn't remember her at all but she loves her regardless. Her dad and sometimes brother like to tell stories about Nadeshiko all the time, so it feels just like Sakura knew her.
--Eriol-- Eriol reminds Sakura a lot of her father and Yukito and from the very beginning, they become good friends. (Much to Shaolan's dismay ^^) They are enemies in the Sakura series but Sakura doesn't realize that until the final battle ensues. Eriol has made Sakura blush several times but I'm not sure she likes him _that_ way. She is amazed by the similarities between him and her father and considers him a really good friend.
--Chiharu, Naoko, Rika, Takashi-- These are Sakura's good friends at school and though, she is not as close to them as Tomoyo and Shaolan. She likes them a lot anyway and vice versa. They hang around with each other at school and sometimes outside of school. Chiharu, Naoko and Rika belong to the same cheerleading club as her and Takashi and the three girls are in the same class as her. They bring good times to the classroom and Sakura cherishes their friendship.