The best alternatives to Bungo Search are Amazon Key, GoodBook, and Wattpad v6.0 (iOS). If these 3 options don't work for you, we've listed a few more alternatives below.
Nonfik is a gated content library, built on discussion-worthy freebies and powered by social reading functionality like: 📚 A shareable bookshelf 💬 Notes & discussions ⭐ Expert & community reviews 🗂️ Custom collections for onboarding or educating peers