If you are traveling from Vadodara to Palitana, the main Jain tirths/derasars you can consider along the way or nearby are:

• Vadodara: Shantinath Bhagwan Jain Jinalaya in Tarsali, and Sumatinath Jain Temple on Akota Road. ( jainknowledge.com)
• Ahmedabad side: Simandhar Jain Derasar in Bodakdev and Sola Road Jain Sangh in Ahmedabad. ( jainknowledge.com)
• Bhavnagar: Shri Vimalnath Jain Derasar, JIVAT SWAMI DERASAR, and Shri Bhavnagar Tirth. ( jainknowledge.com)
• Near Palitana: Hastagiri Tirth, about 25 km from Palitana. ( jainknowledge.com)
• Palitana itself: Shatrunjaya Mahatirth / Palitana Jain Temple and the Digambar Shatrunjayaji Siddha Kshetra in Palitana Taluka. ( jainknowledge.com)

If you want, I can also give you a simple yatra-wise route order of these Jain tirths.