If by “viharman tirthankaras” you mean the 20 currently living Tirthankaras in Mahavideh Kshetra, then the commonly listed names are these: 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. ( jainworld.jainworld.com)

A few important points: Shri Simandhar Swami is regarded as the first of these 20 Viharman Tirthankaras, and these Tirthankaras are described as residing in Mahavideh Kshetra, where Tirthankaras are believed to be present. In Jain tradition, the exact spelling may vary slightly across texts and recitations. ( jainworld.jainworld.com)

If you want, I can also give their birth places, symbols (lanchhan), fathers and mothers, or a short one-line detail for each.