When you're tasked to investigate, research, or explore a particular topic, the phrase "look into" is often used. However, there are various synonyms that you can use instead to make your writing more interesting. For instance, you may use the word "scrutinize" if you want to imply a more detailed and thorough examination. "Probe" is another synonym which connotes a deeper analysis or inquiry. If you want to describe a more objective and factual approach, "investigate" can be a suitable alternative. Other synonyms for "look into" include "survey", "examine", "explore", and "delve into". Using synonyms can help vary your language and make your writing more engaging.