Answer

My top pick would be the Jain Vishva Bharati Online Book Store, because it clearly has a large catalog of books by Jain monks and nuns such as Acharya Mahapragya, Acharya Tulsi, Muni Vijay Kumar, and others. ( books.jvbharati.org)

If you want another very good option, use Jinvachan / Shramanopasak Parivar. It has a dedicated section for Jain religious/spiritual books written by Pujya Panyas Bhavyasundar Vijayji Maharaj Saheb, and the listings show cart-based book purchasing. ( jinvachan.com)

For discovering more physical Jain books across many publishers, JinWani is excellent. It says it has 2590+ books, 33+ active publishers, and 100% physical books only, and it connects readers directly to publishers by WhatsApp or phone. ( jinwani.jinswara.com)

Explanation

If your goal is specifically physical books written by sadhu/muni, I would rank them like this:

1. Jain Vishva Bharati Online Book Store — best overall for well-known monk-authored Jain literature. ( books.jvbharati.org)
2. Jinvachan / Shramanopasak Parivar — especially good for books by a specific Jain monk and practical spiritual titles. ( jinvachan.com)
3. JinWani — best as a discovery tool if you want to browse many physical Jain book publishers in one place. ( jinwani.jinswara.com)

Spiritual Understanding

Buying directly from Jain publishers or monk-authored collections helps you receive books that are more likely to preserve the traditional spirit, language, and intent of Jain Dharma. The sources above are all centered on Jain literature and physical books, which makes them especially suitable for sincere study and practice. ( books.jvbharati.org)

Takeaway

If you want the single best place, start with Jain Vishva Bharati Online Book Store. If you want Gujarati monk-authored spiritual books, check Jinvachan. If you want to explore many publishers, use JinWani. ( books.jvbharati.org)