I share my own (humble) insights right here, its a huge topic but I post regularly, you might find some of those posts helpful: https://techleader.pro/
> it just doesn't feel the same in terms of pride in technical achievement .. i.e. my coding days are over
Same for me, I had to learn to take pride in building successful teams and individuals, and not code anymore.
As an ex-engineer, the key "eureka!" moment I had was when I realized that management != leadership, and leadership > management. After that, I started to study "leadership" as a formal topic, everyone from Marcus Aurelius to Steve Jobs, as if I was learning a new programming language for example.
The combination of technical chops + great people leadership skills is very rare, if you nail that many opportunities will open up for you during your career.
Wish you well on your journey.
How much time do you spend on helping your team members grow? It takes a long time (years not weeks), but this can be very rewarding!