1) RTS's still run on the M66/72, and also the M12, 20, 21, 42, 50, 55 & 57
2) D60s/LFSA run on the 101/102/103 and also on the M14.
3) The R32s also run on the
4) The best place to bus/railfan would be Midtown ( between 72nd to 14th). Best place to trainfan would be Fulton St for the R32
Hope this helps.