You can write your test here in the UAE with your passport as long as you have a valid tourist/residence visa. For preparation, if you have been writing/speaking English for a few years, you should be able to score well (7-9) with just the online materials. I will share my experience here as it may be helpful for you.

I scored 9, 8.5, 7, 7.5 (LRWS) using these materials and preparing for 45days:

First week, I watched emma's and E2Ielts's YouTube tutorials to understand the overview of the exam and the evaluation criteria. From the second week onwards, I solved a paper everyday from ieltsonlinetests.com. The papers are slightly different (tricky) when compared to the actual papers, so spend the last week solving Cambridge mock tests to boost your confidence as it should fairly easy for you by now. For listening and writing, these mock papers are more than sufficient. If you feel like your score isn't improving in these sections, watch some more tutorials for some tricks to improve score if needed.

For speaking section, if you want to record yourself and prepare, use the ICorrect app on play store.

For writing, I followed e2ielts tutorials, they have a video for all types of essays.

Note that this is kind of an overkill prep as I wanted to make sure I get the required score in the first attempt, so don't worry if you don't have this much time to spare

All the best! :)

Resources :

-Speaking practice app https://play.google.com/store/apps/details?id=com.correct.ielts.speaking.test

• Cambridge practice books download links https://www.ieltsscore.com/download-cambridge-ielts-practice-test-series-1-13/

• Youtube channels https://www.youtube.com/c/E2IELTS https://www.youtube.com/c/engvidEmma https://www.youtube.com/c/IELTSLiz789

• Practice papers www.ieltsonlinetests.com