Stack Overflow specifically bans questions asking for advice about appropriate programming tools for solving a particular problem. So, where should we ask such questions?
For example, imagine a user is looking for a parser generator that will be a good choice for creating a parser for their type of data. Where do they get advice?
You might say "a forum where programming language theory is discussed", but the problem with such forums is that they tend to be lightly visited, and moreover there is inevitably an annoying and time consuming registration process. If you want to ask one simple question, it's a big time waster to get all involved first finding the right forum, then registering for it, then listening to the crickets for five days waiting for a possible answer.
I have looked through the Stack Exchange sites and have not seen one that applies.