SaaS 1000 - Free exportable list of the fastest growing SaaS companies
Zylo - Zylo helps organizations optimize their SaaS investments by providing insights around Spend, Utilization, and User Feedback.
Look at that SaaS - Inspiration and resources for SaaS founders
Blissfully - Blissfully offers solutions to track, manage, and optimize SaaS spendings.
Pocket SaaS GlideApp - Quarterly earnings+SaaS metrics of public cloud companies
Torii - SaaS Management Software.