--Shaolan-- Shaolan just seems to be a good friend to Tomoyo. They're good enough friends for Tomoyo to tease Shaolan about his crush on Sakura. She does seem to believe that Shaolan will be the one to make Sakura happy because Tomoyo wouldn't have supported or encouraged Shaolan to express his feelings, otherwise. They do get to talk to each other one on one and are becoming better friends in the process.
--Touya-- At the beginning of the series, Tomoyo seemed to have a crush on Touya. She had a crush on him because he seemed to look like Sakura...well, his ear lobes. 0_o After we find this out, she doesn't seem to harbour the crush anymore (i.e. no blushing) so I guess she just likes Touya.
--Kero-chan and Yue-- Kero-chan and Tomoyo get a long very well. ^^ He seems to like the camera and Tomoyo is always brings a camera. When Kero-chan has no sweets, Tomoyo is sure to save some for him. They're really good friends and it shows. As for Yukito/Yue, I don't think they are as close. So far, they haven't had much time to hang out with each other unless it's a large group and even then, they don't seem to talk to each other a lot.
--Sonomi-- Tomoyo loves her mother, Sonomi but because her mom is usually on business, they might not be as close as Fujitaka and Sakura are. They do get a long and her mother's always giving her nifty gadgets and such.
--Eriol-- Tomoyo thinks that Eriol is a very kind-hearted person and that he is always looking after Sakura with kind eyes. ^^ I think they're good friends.
--Chiharu, Naoko, Rika, Takashi-- Like Sakura, these people are very good friends of her whom she hangs with in school and occasionally outside of school. They have good times together.