TopAnswers is what Stack Overflow should be: focused on communities and knowledge sharing, not profit. We share some of the same aims:
We aren't a clone though:
We are growing steadily, and starting to register on search engines. We launched Databases in October 2019, TeX in January 2020, and Code Golf in February. We have since added a number of experimental communities like C++ and *nix. If you would like to help start another community here, you can. If you are coming from an existing Stack Exchange community you will be able to import your content.
There is a lot more detailed information on our meta community (a place for questions and answers about TopAnswers itself), for example:
Finally, we share many goals (and some contributors) with Codidact. Please consider participating in their communities: