Finding Research Experiences for Undergraduates (REUs) can be challenging due to the lack of a centralized listing. Many REUs are managed by individual departments, and potential applicants are encouraged to visit the websites of specific departments they are interested in. While some resources exist, such as the NSF's REU search page, these may be outdated or incomplete. It is advisable to directly contact professors in departments of interest, as most can accept REU students through National Science Foundation funding. For physics-related REUs, checking departmental sites and reaching out to faculty members is a recommended strategy for finding opportunities.