What license should I use for my open-source software?

I've been building a platform that is going to make DevOps work on any cloud 10x easier and faster, meaning you either won't need to deal with DevOps at all or you will do only the tiny part which is really specific to you. I've managed to build a lot of the features I wanted and now I want to make it open-source/code available. My question is what license is the best? Can I start with CC and move to MIT later? https://github.com/utopiops/utopiops