Are you a prospective trainee? There's quite a lot of information in the railway jobs and careers forum which may be able to help.
However, as I have nothing better to do right now, I'll try to help, with Victoria at least. I don't know much about Tonbridge so somebody else may be able to help there.
Victoria - Sevenoaks via Herne Hill/Catford and Orpington/Bat & Ball
Blackfriars - Denmark Hill/Herne Hill/Victoria
Blackfriars - Bedford (it may just be Luton now)
Victoria - Ramsgate via Sole Street
Faversham - Dover Priory
Victoria - Canterbury West via Maidstone East and Ashford
Victoria - Dartford via Nunhead and Bexleyheath
Not all links sign all routes. From what I understand, the bottom link sign Blackfriars, Sevenoaks, Dartford, Faversham and Canterbury West, and then the top link adds the rest on.