The best alternatives to Stoa are Calm, Meditation Studio, and Stoic Life OS. If these 3 options don't work for you, we've listed a few more alternatives below.
Stoic Life OS is a complete stoic Notion workspace/operating system to manage your entire life, with more than 25+ templates inside, all designed to make your life easier.
Timeless exists to help people deepen and discover their meditation practice. + Multi-day immersions + Guided instruction emphasizing real techniques + Personal practice toolkit + In-depth progress tracking and goals
Improve your stress, sleep, and more with the world’s first personalized meditation program. -- Balance is your personal meditation coach. Each day, you’ll answer questions about your meditation experience, goals, and preferences.