Apart from the Navkar Mantra, you can do naam jap of other Jain devotional names and mantras, such as:

• “Arihant”
• “Siddha”
• “Acharya”
• “Upadhyaya”
• “Sadhu”
• “Jinendra Bhagwan”
• “Shri Mahavir Swami”
• “Parshvanath Bhagwan”
• “Adinath Bhagwan”

You can also do Bhakti-jap of a specific Tirthankar whose qualities you want to remember and cultivate.

Common Jain jap options

1. Arihant namah
2. Siddha namah
3. Jinendra namah
4. Mahavir Swami namah
5. Om Hrim Arahantanam Namah

This is used in some Jain traditions.

Important Jain understanding

• Navkar Mantra is the highest and most universal.
• Other naam jap should be done with shraddha, purity, and remembrance of qualities, not just as mechanical repetition.
• The main purpose is to develop vitarag bhav, samyak darshan, and inner peace.

If you want, I can also give you:

• simple daily jap list
• mantras for morning/evening
• Digambar and Shwetambar differences in jap