Below are some French deists other than the ones during the French Revolution, including a little about the person and his deist ideas. Some entries have a link to a good introduction to his deist ideas.
Marquis D’Argens (1703-1771) was a well-known French writer who was a close friend of Voltaire. The best introduction to his deism is the chapter “Deism and Natural Ethics” in Newell Richard Bush, The Marquis D’Argens and his Philosophical Correspondence: A Critical Study of d’Argens’ Lettres juives, Lettres cabalistiques, and Lettres chinoises (Ann Arbor, MI: Edwards Brothers, Inc., 1953), 115-47.
Marquis de Lassay, aka Armand de Madaillan de Lesparre(1652-1738) was a French soldier and writer. A good introduction to his deist ideas is his Relation du royaume des Feliciens . . . coutumes (Lausanne, 1756), 387-396.
Baron de Lahontan, Louis Armand de Lom d’Arce (1666-1715?) was a soldier and writer, whose books were one of the first bestsellers in eighteenth-century France. He presents his deist ideas in a dialogue with the Huron Indian Adario in New Voyages to North-America,2 vols. (Chicago: A.M. McClurg Co, 1905), 2:517-550.
Simon Tyssot de Patot (1655-1738) was a writer and mathematician. An introduction to his deism is the first couple chapters of David Rice McKee, Simon Tyssot de Patot and the Seventeenth-century Background of Critical Deism(Baltimore, MD: Johns Hopkins Press, 1941).
Jean-Baptiste-Claude Delisle de Sales (1741-1816) was a minor thinker until he was accused of blasphemy and imprisoned. His trial made his book, The Philosophy of Nature, one of the bestsellers of the eighteenth century. The best introduction to his deist ideas is his De la philosophie de la nature, ou traité de morale pour l’éspèce humaine tiré de la philosophie et fondé sur la nature, 3rd ed., vol. 6 (London, 1777), 357-374. (This is the beginning of the first chapter in Book 5.)
Émilie Du Châtelet (1706-1749) was a French philosopher and natural philosopher, who was a significant advocate of Newtonianism in France. A good introduction to her deist ideas is her “Examinations of the Bible” in her Selected Philosophical and Scientific Writings, ed. Judith P. Zinsser, trans. Isabelle Bour and Judith P. Zinsser (Chicago: University of Chicago Press, 2009), 207-250.
Claude Gilbert (1652-1720) was a Dijon lawyer who wrote a Utopian novel. The best introduction to his deist ideas is his Histoire de Calejava, ou de l’isle des hommes raisonnables (n. p., 1700), 133-181.
Jean-François Marmontel (1723-1799) was a French poet, novelist, and dramatist. The best introduction to his deist ideas is chapter 15, where Belisarius explains his religious ideas, in his novel Belisarius.
Étienne Gabriel Morelly (fl. 1750s) was a French writer. The best introduction to his deist ideas is his The Basiliade: Or the Book of Truth and Nature, vol. 2 (London, 1761), 49-59.
François-Vincent Toussaint (1715-1772) was a French writer who became really well known for his 1748 novel Les Moeurs [Manners]. The best introduction to his deist ideas is Part 1 of this novel, as it is about his view of God.
Voltaire (1694-1778) was an illustrious French philosopher, novelist, playwright, and essayist. A good introduction to his deist ideas was his The Sermon of the Fifty.
Enlightenment Deism 