You may find some information here : https://en.wikipedia.org/...monarchs#Later_pretenders
In short, there are three main pretenders:
-For the Legitimists : Louis Alphonse de Bourbon (born 1974). Married to Maria Margarita Vargas de Satantaella since 2004. Three children: Eugenia born in 2007 and twins Louis and Alphonse in 2010.
-For the Orleanists : Henri d'Orléans, Comte de Paris (born 1933). He has five children, the "heir being his second son Jean, Duke of Vendôme (married to Philomena de Tornos, they have a son Gaston born 2009, and a daughter Antoinette in 2012)
-For the Bonapartists : Charles Napoléon (born 1950) though some also recognised his son Jean-Christophe (born 1986) as the current Head of House.
There are also other pretenders including Queen Elizabeth II for example, or even King Juan Carlos through their ancestry.