Building online presence and goodwill as an aspiring indie hacker

Hello,

Hope you all are having a good day.

I'm a recently hired software developer that will someday like to build a product that provides value as an indie hacker.

I have a few questions that I'll appreciate any input that I can get.

1. How can I build my online presence as a newbie developer?
2. Are there any recommended websites, forums, meetups, or conferences that can help me out in my journey?
3. Are there any specific Reddit groups or platforms that I can add value?

Thanks for the pieces of advice in advance.