Like others have said - find opportunities to be a tech lead.
First, start with a mindset shift. Your output as a leader is not measured by feature output. It’s measured by how much the environment of the team improves. Are changes to the process happening? Are goals clear to the team? Do people feel supported?
Learn how to plan and coordinate projects that involve multiple engineers.
Partner closet with your PM and boss to influence roadmaps.
Mentor teammates.
Take ownership of action items in retrospectives.
Build relationships with everyone on your team and key influential people on other teams.
Learn how to give great feedback to your peers.
The best book I’ve found on this topic is Becoming a Software Engineering Manager.
Also, I write a blog about engineering management (shameless plug).