I was hasty in my response (as I was connecting outside of home).
Guides are treated by Bucquoy in two specific parts - I m giving the references to the Gracher books - sorry, but I did have in my hands, once, a complete set which a friend bought (I could not personally justify the price !).
- Guides de Bonaparte 1796-1800 are in the 6th volume : Dragons et Guides pages 90 to 100, of interest also are pages 108-109, Guides-Dragons de l'armée d'Italie
- Historique du Corps des Chasseurs à Cheval in volume 2, pages 12-following but focused more on the consular guard
Little to nothing in La Sabretache
The Dupont-Toussaint book: "Guides de Bonaparte et Chasseurs à Cheval de la Garde" covers the Guides pages 13-44 - very readable (in french) but not a detailed organizational study. It has been reprinted by LCV (original copies because of the quality of the plates fetch a high price).