The best listing of these I've found is here: https://github.com/smirnov-am/awesome-saas-boilerplates https://github.com/smirnov-am/awesome-saas-boilerplates I

The best listing of these I've found is here: https://github.com/smirnov-am/awesome-saas-boilerplates https://github.com/smirnov-am/awesome-saas-boilerplates I believe they are listed in ~order of popularity/maturity by framework. Or at least the top 1-2 in each framework are the ones I've heard the most about.