I94 expires-overstay

My wife is currently on H4 visa and her passport has a visa stamp expiring Feb 23 2024. Due to lack of knowledge I didn’t extend her I94 at the time of my H1 B extension in Feb. We overstayed more than 8 months. Based on the posts here, I notice my options are

  1. Filing H4 extension with NPT.
  2. leave the country so to avoid staying more than 365 days and attend an interview in India.
    Are there any other options?

What backup documentation or reason do I have to provide to USCIS along with NPT?

If anyone can help us here how to proceed. It will be very much helpful.

File H4 NPT application with USCIS to request i94 from back date. Or leave US and Get H4 visa stamp with entry ban waiver from US embassy

We are planning to apply I-539 with NTP , can she overstay after one year if I539 still under processing?