Firstly, bulldogs are very contentious breeds, and if you do get one, be prepared for total randoms commenting that your dog can't breathe/is lazy, etc etc.
That said, if you're serious, the right breeder is essential. There is an entire movement of bulldog breeders actively working on making them a healthier breed. They ARE expensive. Mine cost $3k and I would never have a bulldog without pet insurance, purely for my own peace of mind.
They are also stubborn, so are not recommended for first item dog owners and yes, they drool, they fart and burp, snore and they leave bulldog hair everywhere. Like all dogs, they need lots and lots of training, but unlike a lot of other dogs, they won't really care if they don't feel like doing something.
That said, they are fantastic dogs. They are brilliant with kids. They are waaaay more active than their reputation suggests, particularly when they are young. They are loving and warm, are useless guard dogs as they are people pleasers and they want to be with you all the time.
I love mine, and would have one over and over again. He is healthy, breathes fine, can hike as long as all the other dogs (except on very hot days) and is the most loving, gentle dopey ball of fur you could ever hope to meet. And he's beautiful to boot!
Feel free to message me if you have any other questions.