Great reply!
I don’t suppose you know what Waterloo drivers sign?
So this is correct AFAIK for a new driver starring.
444, 450, 455, 456, 458, 707
Waterloo-Guildford via Woking
Surbiton-Guildford via Cobham
Hampton Court
Raynes Park-Chessington South, Dorking and Guildford via Epsom
Waterloo-Weybridge/Byfleet & New Haw via Staines, including via Richmond and Hounslow, including the Hounslow Loop
Staines-Windsor & Eton Riverside
Kingston Loop (Twickenham-New Malden)
Shepperton Branch, from both Teddington and Strawberry Hill direction
East Putney (Wandsworth Town-Wimbledon)
Waterloo South Sidings
Clapham Yard
Wimbledon Park Depot
(Possibly some more depots and sidings too.)
I am not sure exactly how the link structure works, but different links add different extra routes.
Virginia Water-Reading
Guildford-Portsmouth Harbour
Woking-Poole
Woking-Alton
Basingstoke-Salisbury
Link 1 signs 159s, and a small number of drivers are meant to be learning 442s, but I don't know if that has started yet.