One of the many things that differentiate dogs from other animals is their ability to bark and I think it would be strange for someone to want a dog and expect him to never bark. Dogs bark to alert their owners, to scare the scary thing off, to demand your attention, because they are bored out of their doggie minds, and they bark because dogs just want to have fun!
There are many reasons why dogs bark, and I always like to find out why a dog barks or “excessively” barks, before suggesting a solution.
If you believe your dog loves to bark and it isn’t because he is under exercised, bored, anxious, aggressive, fearful or any other reason, then teach him to bark and shush on cue.
First find out what triggers your dog to bark. Let’s say it is the doorbell.
Say “woof” or “speak” or whatever you want the cue to be. Then ring the doorbell. Praise your dog for barking. By now your dog is thinking that you have lost your mind!
Now say “Shush” or “quiet” and show him a yummy treat. Your dog will stop barking to sniff the treat. Praise him and say good shush, and give him the treat.
Practice several times, until your dog understands the meaning of “Speak” and “Shush”.