In Jain tradition, “Viharman Tirthankaras” means the 20 living Tirthankars presently active in Mahavideh Kshetra. They are called Viharman Bhagwans because they are currently preaching Jain Dharma there. ( jainsite.com)

Their names are:

1. Shri Simandhar Swami
2. Shri Yugmandhar Swami
3. Shri Bahu Swami
4. Shri Subahu Swami
5. Shri Sujat Swami
6. Shri Svayamprabh Swami
7. Shri Rishabhanan Swami
8. Shri Anantvirya Swami
9. Shri Surprabh Swami
10. Shri Vishaldhar Swami
11. Shri Vajradhar Swami
12. Shri Chandranan Swami
13. Shri Chandrabahu Swami
14. Shri Bhujangam Swami
15. Shri Ishwar Swami
16. Shri Nemiprabh Swami
17. Shri Virsen Swami
18. Shri Mahabhadra Swami
19. Shri Devyash Swami
20. Shri Ajitvirya Swami ( oshwal.org.uk)

If you want, I can also give their order, kalyanaks, or a simple explanation of Mahavideh Kshetra.