1. Old Soldiers
2. The Doll of Death
3. The Magician's Oath
(It should be noted that for the first three Doctors, the audios are companion chronicles, which features one or two companion actors with one or two additional voice actors)
There is the BBC audios with Pertwee The Ghost of N-Space and The Paradise of Death
which have Sarah Jane and the Brig in them.
I'm pretty fond of them.