Blissfully - Blissfully offers solutions to track, manage, and optimize SaaS spendings.
Lean Canvas - Business plans take too long to write, are seldom updated, and almost never read by others but documenting your hypotheses is key. Lean Canvas solves this problem using a 1-page business model.
Zylo - Zylo helps organizations optimize their SaaS investments by providing insights around Spend, Utilization, and User Feedback.
Business Model Kit - Explore revenue models to make money with your idea
Torii - SaaS Management Software.
Growth Hacker Course - An interactive online course from Ryan Holiday