In Jainism, there is no single “current main guru” for all Jains.

Jain Dharma is divided into different traditions and sanghs (like Digambar, Shwetambar Murtipujak, Sthanakvasi, Terapanth, etc.), and each has its own Acharya / Guru / Sadhu–Sadhvi group.

So the answer depends on what you mean by “main guru”:

• If you mean for all Jains → There is no single supreme living guru accepted by all Jain sects together. The only universally accepted supreme teacher is Bhagwan Mahavir and the other Tirthankars.
• If you mean for a particular sect (e.g. Terapanth Acharya, a specific sampradaya, a local guru, etc.) → then I need to know which sect / sangh / sampradaya you are asking about.

Please tell me:

• Which Jain tradition or sangh you follow (e.g. Digambar, Shwetambar Terapanth, Sthanakvasi, etc.),

so I can give a precise answer for that guru-parampara.