How do you determine your research interests and why is this important? During our academic and research careers, we learn that we have specific areas of interest that we prefer to pursue more than others. Most of the time, we are excited to work on exciting projects for lengthy periods of time. On the other hand, a lack of interest makes us feel overwhelmed when we have to complete the most difficult work in our studies.

Select a topic that piques your curiosity.

Pick a broad area of interest to begin with; this is the first step in studying your hobbies. Consider what it is about this subject that attracts you the most. What are some specific topics in the subject that you'd want to focus your study on? There might be numerous areas of interest, and you can research which one appeals to you the most.
Now split down your major field of interest into subtopics and assess how important each one is to you. Find out which topics are worth investigating and learning about. Make a thorough list of subtopics. If you're not sure if your list is thorough, talk to someone who knows what they're talking about. An broad list can aid you in deciding on a study topic that is both interesting and relevant to you.

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You may use any method to list all of the sub parts; for example, brainstorming is a great way to accomplish it.
To understand more about the prospective subjects, you may also read and analyze literature in the subject area. Consult your supervisor, research adviser, instructor, or a subject matter expert if you're still unclear.

Select sub-topics that pique your interest.

After you've compiled a complete list of all possible research sub-areas, you can exclude locations that aren't of interest to you. A easier way to accomplish this is to eliminate the portions that are least interesting. Look into the other options that are still accessible. Continue to cross out things that don't pique your interest until you've found something you're enthusiastic about. This topic must be manageable in terms of time and other factors.

Last but not least,
You should now be able to develop relevant research questions, objectives, and study hypotheses. If the issue appears to be too wide and tough to manage, you should limit it down.