Book agents

As some of you know, I am an author of fantasy novels. I have had 4 published and am looking for an agent for number 5. Unfortunately I have had a nightmare with the agent and publishers for my first book who have not paid me royalties for over 3.5 years now so I put my book (and books 2, 3 and 4 on Kindle) and now get no problems getting paid my royalties by Amazon.
However, as I said before I am looking for representation. If anyone knows of any agents in France who handle english books then I would be most grateful if you could pass on contact details to me so that I can get in touch with them.
Many thanks to everyone.