@Almarines If being a bookkeeper is related to being an accountant, according to <a href="https://theterritory.com.au/migrate/migrate-to-work/northern-territory-government-visa-nomination/nt-migration-occupation-list/northern-territory-migration-occupation-list-a-f">NT website</a>
<i class="Italic"><b class="Bold">221111 Accountant (General)</b>
Offshore applicants must provide evidence of having received an offer of employment by a NT employer in their nominated occupation or a closely related occupation
All offshore applicants must have a minimum IELTS of 7.0 overall or equivalent</i>
Now to have an offer of employment, you need to check out Au job sites like <a href="http://www.seek.com.au"><b class="Bold">Seek</b></a>, <a href="http://www.indeed.com.au"><b class="Bold">Indeed</b></a> for available jobs and apply. While it is not improbable to get a job offer that way, being locally available is a plus factor. You may also need to have your skills assessed by the proper agency for your occupation.
Visa sponsorship can come from the State via the 190 visa, if you intend to work in regional areas the state or a relative can sponsor <i class="Italic">(this used to be 489 but a new visa scheme has just been announced)</i>, and sponsored by employer either via 482 (Temporary Skill Shortage) or 186 (Employer Nominated Scheme).
There is so much discussion in the forum regarding the merits of each of those pathways. Do take some time to search and read and ask if still unsure of the pathway for you. If you can add more details to your question, specific answers can be given.
Best wishes on your journey.