There are different repository hosting services with the most famous one being GitHub, GitLab and BitBucket. I would recommend creating an account on GitHub because that is where most of the OpenSource work is done and most of the developers are.
Visit the following resources to learn more:
Resources Community KGx AICbe YouTube
KGXperience by @nivu Navaneeth malingan
" KGXperience is a community initiative by KGiSL Edu that believes in curating and tinkering with innovation and state of art technologies forging new path in innovation. "
"AI Tamil Nadu formely known as AI Coimbatore is a close-Knit community initiative by Navaneeth with a goal to offer world-class AI education to anyone in Tamilnadu for free."