If you want one best Jain tirth in Rajasthan, I would say Dilwara Jain Temples, Mount Abu are the most iconic and प्रसिद्ध for their extraordinary marble carving and pilgrimage value. ( jainknowledge.com)

If you want other top Jain tirths in Rajasthan, these are also highly revered:

• Shri Mahaveerji, Karauli — a major Digambar Jain atishay kshetra and very important pilgrimage site. ( jainknowledge.com)
• Ranakpur Tirth, Pali — one of the most famous Jain temple complexes in Rajasthan. ( jainknowledge.com)
• Nakoda Tirth, Barmer — a very well-known Śvetāmbara Jain tirth dedicated to Parshwanath. ( jainknowledge.com)
• Muchhala Mahavirji, Pali — a respected Mahavir tirth known for its spiritual atmosphere. ( jainknowledge.com)
• Hathundi Teerth / Rata Mahaveerji, Sikar — another important Jain pilgrimage site in Rajasthan. ( jainknowledge.com)

So, in short: for beauty and fame: Dilwara; for major pilgrimage devotion: Shri Mahaveerji or Nakoda. ( jainknowledge.com)