Hi! That depends on what you consider classic. You might post some actual route names. There are many T:ANE routes on the DLS (look for version 4.5, and many older routes will also work)
If you are talking the old built in routes from TRS2004 to TRS2009, (which I myself am very fond off) they are all on the download station and the great majority have been updated to TRS2019 compatibility standards.