Here's a 20 page book that's new $0.99 on kindle, and you can get it for free on many websites: Scrum: a Breathtakingly Brief and Agile Introduction Paperback – April 3, 2012
Link to amazon listing
Re: Motivational Interviewing, also check out the short version Instant Influence (ignore the seemingly manipulative subtitle, it is a deeply non-manipulative method). See this article for a summary.
I think OP is referring to Product Managers, who sit over Product Owners. PMs have a lot of sway in a lot of companies these days. Team ownership has shifted from POs to PMs. Agile teams were never owned by team leads however. Team leads have a lot of influence, but not the final say, in many things.
Worth a read even for engineering folk (of which I am one): https://smile.amazon.com/gp/product/B0778ZX2TX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
A lot of Product people seem to be pretty anti Agile these days, FWIW.
Sorry for the delayed reply. Here is a link to the practice questions book I utilized:
I really like this book for getting started. Gave me a lot of good tips. Mural has also become indispensable in working as a team. Great tool.
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).
My father use to say "Success starts early. Choose your parents wisely". Heh!
Read A Drunkard's Walk if you have time. Randomness plays a bigger part in our lives than you could have previously imagined.