I has a Doctor Who fic rec for you! The DoctorDonnaRose 'Verse by shinyopals. It's a happy post-S4 series that completely ignores "Journey's End", and is very happy and fluffy, with lots of Doctor/Rose cuteness and Doctor/Donna friendship and Rose and Donna cheerfully mocking the Doctor. It makes me quite gleeful. I love finding happy fics that I didn't know existed.