For tons more than I could ever add here, check out First Search by First Round and the Y Combinator Library. You can search thousands of articles on anything you’d ever want to know about building products and companies.
For resources on human-computer interaction, including 126,000 publications, check out the HCI Bibliography by the Association for Computing Machinery’s Special Interest Group on Computer Human Interaction (ACM SIGCHI). Recommended resource by Carnegie Mellon’s renowned HCI Institute.
I cannot recommend readings.design enough. An incredible compendium of reading on design.