FWIW, I'm writing a book on how to hopefully do just that: http://howtofindsaasideas.com/
(Apologies for the buggy landing page. New one coming soon. If signing up doesn't work, email me directly at info@howtofindsaasideas.com and I'll hook you up.)
(Apologies for the buggy landing page. New one coming soon. If signing up doesn't work, email me directly at info@howtofindsaasideas.com and I'll hook you up.)