In Śvetāmbara tradition, “108 Pārśvanāth” usually refers to:

• 108 prominent idols / tīrths of Bhagwān Pārśvanāth (famous temples and mūrtis),

• Sometimes it also refers to 108 names (aṣṭottar-śata nāmāvalī) of Pārśvanāth.

A single, fixed, universally‑accepted written list of the 108 Śvetāmbara Pārśvanāth idols is actually not easy to find in the canonical scriptures. Different gacchas / saṅghs and different temple‑traditions keep their own detailed lists of 108 Pārśvanāth mūrtis (for example: Lodhurā Pārśvanāth, Nakoda Pārśvanāth, Jīrāwālā Pārśvanāth, Śaṅkheśvar Pārśvanāth, Navlakha Pārśvanāth, Makshi Pārśvanāth, etc.), and there can be small variations.

Because of this variation, I cannot give you a single, guaranteed‑authentic complete list of all 108 Śvetāmbara Pārśvanāth idols without risking inaccuracy, and that would go against the requirement to keep the information fully correct and traditional.

For an accurate, traditional list, the best is:

• Ask at a nearby Śvetāmbara Jain temple (derāsar) or
• Refer to the pūjā‑pāṭh / tirth‑mārgadarśikā book they use for “108 Pārśvanāth” pūjā in that saṅgh or gaccha.

If your question was actually about the idea of “why 108 Pārśvanāth”, you can read a short explanation here: You can read more here