Try to avoid the THALYS trains if you want to save money.
If possible, make a reservation for the direct trains Frankfurt-Paris.
On this direct connection it is EUR 10. Thalys is much more expensive.
Hetman wrote:the only difference between TGV and Thalys is price and colour of the bodywork
Hetman wrote:2nd class: EUR 10
https://en.rail.cc/train-type-c ... nt--d-f/64