“Over 168 checklist points to make your app a success. This checklist covers validation, marketing, pre-launch, launch, SEO, post-launch strategies and many other important topics.”
There are a lot of ideas here that are worth browsing through.
Marketing Opportunity: Checklists or resource pages like this are very popular and can get some traction on Product Hunt or Hacker News. Can you create a checklist related to your business that might generate some traffic?