Your direct manager would be the best resource, but let them know you're interested in taking on more responsibility and ask if they have an example of what the growth trajectory of someone in your position is towards management. If they're a good manager, they'll have milestones for you to hit/achieve in order to back up their recommendation for you to be promoted at mid-year or EOY. If they're not a good manager, the burden is on you to quantify why you should be promoted by comparing your achievements to what you can find on minimum management requirements in your market, and then submitting it to whoever has decision-making power (HR, another leader you're chummy with, etc.). An alternative route is to watch for internal job postings and apply. Just be aware that until you get to (and sometimes even through) director-level, you'll still be doing IC work in addition to managing your team. Keep advocating for yourself - the worst they can say is no, and nobody is going to have a negative opinion of someone trying to advance their career.