@chikou The best way is to go to dog shows, and talk to the show breeders and become friends with one or two and maybe join the local bulldog club. Pick these breeders brains and also ask them what they think of your girl, is she breeding material, ect. ect. Sometimes you will find one you can partner with or they may be willing to mentor you, and also may have a stud that is suitable for your female. Listen to what they have to say with an open mind, and if they don't think your girl should be breed for whatever reason, maybe they will have one you can purchase that will be. Sometimes if you partner with one you can take the female for less money than usual and they will want a puppy back and will help you pick a male. I can not judge your girl, as I have not seen any good stacked picks of her to see how she looks.
Oh and I am a reputable breeder in case you were wondering, and have been doing it for some time now.