I think the concept of "entregue" is used very liberally for copywriting purposes regardless of the context in Brazil, so I think it may be a good idea to consider straying a bit from the concept of delivering for this translation, as based on the context, this appears to be about an algorithm that helps making the client's content easier to find/get noticed on social networks. With all of this in mind, I think the idea of reaching out a larger audience sounds more natural and interesting to the target audience. By the same token, the idea of delivering would be less natural and easier to associate with other content hosting platforms, instead of something to help raise awareness on social networks and the like.

Now, to answer your questions.
1. I think "want" may sound more natural as it is more informal and colloquial, while "wish" seems a bit more formal and polite. In the copywriting world, more active words such as "wanting", "seizing", "capturing", are generally more popular and seem the most natural.

2. I would say "best delivered", because it implies quality and feels more "active". Much like question 1, the more active word choices that imply the best possible quality generally sound better and are more popular as well.