A crash course in migration options for applicants:
Points Based Visas (491/190/189): your age, education, english language ability and work experience awards you points. If you get enough points you may be able to receive an invitation from the Department to apply for a permanent visa (189/190) or a visa with a built in pathway to PR (491) for you and your family. Not all occupations can access these visas, the 189 visa has a smaller occupation list vs the 190 and 491.
482 Employer Sponsored Visa: this is a temporary visa which can be granted for up to four years. After two years working as a 482 visa holder the 482 visa holder's employer might be able to sponsor them for permanent residency. The minimum salary you need to get paid per annum with this visa is $70,000 AUD + superannuation, in some circumstances a higher salary is required. There does exist labour agreement streams for this visa which can sometimes lower the required salary.
186 Direct Entry Employer Sponsored Visa - PR visa for people with at least 3 years full time, skilled, paid experience in their occupation. Limited list of occupations that can access this visa. The minimum salary you would get paid per annum with this visa is $70,000 AUD + superannuation (some exceptions for labour agreements).