The best alternatives to Global Starters are BetaList, Rentalist.co, and Ignition GTM. If these 3 options don't work for you, we've listed a few more alternatives below.
BetaList is a community of makers and early adopters showcasing their startups and exchanging feedback. It provides an overview of upcoming internet startups.
Ignition helps PMM and PM teams launch more effectively, save time on planning, and create more internal alignment. It uses best practice-based workflows to predict product timelines, dynamically recommend plans, and centralize plans/tasks/assets/measurement.