On Visitor visa 600- No flights to travel

Dear Anil,
I came to Australia on Visitor visa 600 on Feb 15th. I had booked my return ticket on the 15th of May. Due to the COVID-19 issue, my flight was canceled. I was advised to apply for a new visa by the travel agency. Am I allowed to apply for any other visa which will allow me to work here? or I will be allowed to apply only for a visit visa. Kindly explain the visa options I have.
Thank you.

You can apply for visitor visa to be on safe side.