Here are 40 modern, simple and unique baby boy names inspired mainly by Jain / Sanskrit roots (many are also names of virtues, devas, or connected to Tirthankars):

1. Aariv – peaceful, king of wisdom
2. Advay – one, unique, non-dual
3. Anvit – one who bridges / connects
4. Arham – auspicious Jain name, related to Arihant
5. Ariv – knowledge, wisdom
6. Darsh – vision, to see the truth
7. Devansh – part of the divine
8. Dveet – one who sees both sides
9. Ehansh – pure part / portion
10. Eshaan – lord, north-east direction, purity
11. Hrishit – joyful, happy heart
12. Ivaan – gracious, God is kind
13. Ishir – powerful, strong, energetic
14. Jainesh – lord of Jains / related to Jain Dharma
15. Jenil – heavenly, calm, pure
16. Jiyan – life, soul (jeev)
17. Kanish – caring, youngest
18. Kriv – gentle, unique short modern name
19. Lakshit – target, goal-oriented (like spiritual goal)
20. Mahin – the great one, earth
21. Manan – deep thinking, reflection
22. Mitansh – a part of friend / friendship
23. Neev – foundation, base (like dharma as base of life)
24. Nivaan – holy, sacred
25. Ojas – spiritual strength, brightness
26. Parv – festival, auspicious day
27. Pranit – modest, peaceful, well-guided
28. Reyansh – ray of light
29. Ridhaan – seeking goodness
30. Rishit – best, saintly
31. Rivan – star, leader
32. Saarth – meaningful, with purpose
33. Shaan – glory, peace
34. Shiven – auspicious, pure
35. Smit – smile, always smiling
36. Tanay – son, gentle boy
37. Tvesh – sharp, bright
38. Ujjwal – bright, pure
39. Vihan – dawn, new beginning (like new spiritual start)
40. Yansh – part of higher power

If you tell me your community (Digambar / Shwetambar / language region), I can refine this list further with more specifically Jain-tradition names (like from Tirthankars, Ganadhars, etc.) that still sound modern.