Is it considered haram to speak with homosexuals online for the purpose of scientific research to prepare a university thesis about their behavior and how to deal with them, knowing that the intention is solely to gather information?

Searching for a cure for society's deviant behavior is permissible, and even an act of worship if one intends by it the face of Allah and the call to adhere to the Sharia. Communicating with people, whether in person, online, or by phone, is permissible as long as it does not lead to a forbidden outcome according to Sharia. Among the forbidden outcomes are: looking at prohibited images and practices, or speaking in a manner that arouses them. One must abstain from this work if one fears for oneself any inclination [towards deviance]; for religion is the capital of the wise person.