Answer

In Jain tradition, the 9 Vasudevas are:

1. Tripṛṣṭha
2. Dvipṛṣṭha
3. Svayambhū
4. Puruṣottama
5. Puruṣasiṃha
6. Puruṣapuṇḍarīka
7. Datta
8. Nārāyaṇa, also called Lakṣmaṇa in some texts
9. Kṛṣṇa ( jainqq.org)

Explanation

These are the nine Vasudevas listed in Jain universal history, and the spelling of a few names can vary slightly across Jain texts and traditions. ( jainqq.org)

Takeaway

If you want, I can also give you the 9 Baladevas and 9 Prati-Vasudevas in the same list.