What kind of dog should i get?

Hello my name is Julio and I'm wanting to get a dog. My brother is going to be moving to college next year and my parents will be working during the weekdays, so i will be lonely after school. I was wondering what a nice dog for me would be. The size doesn't matter to me, id like a dog that doesn't need too much exercise, one that doesn't bark or shed too much, I'd be at school for around 7 hours every weekday. I live in a small house with a small yard but I do have a park nearby. So what is a nice quiet dog that will be my buddy while I'm home alone? Also if anyone has any ideas how to convince my parents to get me a dog that would be helpful ( my dad is scared of dogs). Thank you in advance.