Lille - Paris just about still possible with quite a bit of loco haulage Amiens - Paris. A few locals Lille - Amiens might still be a loco but mostly EMU
Paris - Strasbourg via the old line
SNCF has made this deliberately difficult by making the loco hauled services miss each other. There is loco hauled Paris - Bar le Duc and Saverne - Strasbourg but little in the middle section
Strasbourg - Lille - now virtually impossible by loco haulage AFAIK