Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
It seems like one of the most common sources of off-topic questions.
I saw this post which looked positive. What are the costs / needs to get one started?
You need to assemble a group of people willing to kickstart the site, then propose it on https://area51.stackexchange.com/. The full process is described here but be aware that you need to get through it quite quickly which won't be possible without having the community all ready to go.