The website's structure migth not be intuitive and there's certainly some outdates stuff there, but their TOP 10 (https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Proje...) is a great starting point and they have some nice stack/language-specific docs as well.
It's a good starting point to be proficient with a very new/niche technology. For example I got my first full-time job at a similarly desperate company, because next to no one knew how to develop Windows Phone applications back then in my country and they were in dire need of such a developer. So actually I didn't have to find them, they found me. :)