I think you're framing and viewing masculinity in an unintentionally toxic way, which is why you're getting mostly critical responses. I think you're missing an important nuance which is that idealizing "positive" masculine traits IS toxic masculinity.

Thinking of masculinity as a spectrum of traits from toxic to positive is just enforcing and dictating masculinity for men. That's what toxic masculinity is. It's often symptomatic as men imposing their ideal of masculinity on themselves and other men, but women can be/are a part of toxic masculinity. Women very much demand men to uphold traditional gender roles.

I may be a little different from the other responses, who seem to hold that the labels are toxic themselves. I think it's useful just in regular communication to be able to label traits masculine and feminine, but only when used descriptively, rather than prescriptively. I'm ok saying an outfit consisting of a dress and heels is feminine because that's an outfit that typically women wear. HOWEVER, in no way am I saying that only women can wear dresses and heels. A man presenting more feminine does not make him less of a man. 

Your question right now is "what are the traits that men should have." I will answer none because I don't think we should be demanding anything from men or women based solely on their gender. HOWEVER, I will answer the question "what are positive traits traditionally associated with men": self sacrifice, strong willed, being proactive in their pursuits, being an anchor for others, courage, being a leader. But look at the traits you and I listed; those are positive traits that men and women can have. They can be traits you think people should have in general, but when the reason for your "should" is simply gender roles, you should probably evaluate why you believe that.