I am not sure exactly what level of assistance you require. There are some companies that provide editing and writing assistance. You can approach them with your request. Editage also has editing services; you can check if any of these services suit your purpose.
We also have some articles that will provide you with guidance on how to convey a thesis into a journal article:
- The basics of converting your PhD thesis into journal articles
- Tips on rewriting your thesis as a journal article
- 9 Differences between a thesis and a journal article
- Can a thesis be revised and submitted to a journal?
Hope this helps!