Is an untucked shirt, blazer and jeans a good look?

Hi everyone, I have recently purchased 4 casual shirts that I am planning on wearing with jeans. The shirts themselves are the right fit and go well with jeans however my question is when wearing an untucked shirt with jeans if I was to add a blazer into the mix is that a great look? Or does it look off? Or do you guys suggest when adding a blazer to the outfit I should just tuck in? This gentleman needs help, all your feedback will be much appreciated. Thanks 🙂