Well, xxxHolic is a great manga that interlaps with Tsubasa Reservoir Chronicles(TRC) and Card captor sakura.(CCS). CCS was about a girl, Sakura, who released magical cards, now discovers her magical powers, growing to master it and undo her mistakes.She learns about friendship and love along with Syaoran and Tomoyo. TRC speaks of the same Sakura and Syaoran except in a different dimension and this time, it revolves more into syaoran as a character. In TRC, Yuuko, the dimensional witch is introduced. That bring's to xxxHolic, where the different worlds and dimensions was created by Clow Reed and Yuuko. For more information, here's the link of the website.:
TSUBASA RESERVoir CHRoNiCLE, Cardcaptor Sakura, xxxHOLiC anime manga - Clow Legacy @ TsubasaChronicle.net
It's really good, I hope it captures your interest.