Do you think it is better to have only one best friend or a couple of good friends?

I think you're right in a sense. It's better to have a few close friends than just one best friend because what would happen if that best friend betrayed you? Then you'd be left with no one. However, you could always have a best friend which is part of the group! You know though that it's not always a good idea to expose your soul so much to anyone, even best friends.. You should learn to keep some things to yourself :)