The pattern I value in one person (e.g., an almost toxic high bias-towards-action) can be what challenges me and lets me grow, but would be draining without people around me who have orthogonal (not opposite) traits.

Another example: I like to be around both "ADHD-generalists" and "focused-specialists," but would go crazy if my circle consisted of only one of these types.

So it's not about maximizing the same patterns in all of your close friends: High variance of personalities is key, especially when growing a team or community.

These are character traits I look for in friends. Traits of romantic or family relations largely overlap but have different key focuses (unconditional love, emotional warmth, aesthetic compatibility, vulnerability, etc.)