To search for potentially applicable methods for a method reference in Java, you can follow these steps:

1. Check the Target Type: Determine the type of the target (e.g., the interface or class type) to which the method reference is being assigned.
2. Identify Method Signature: Look for the method signature (name, return type, parameters) that matches the expected method reference.
3. Use Reflection: Utilize Java Reflection to inspect the class and list its methods. This can help identify matching methods dynamically.
4. IDE Features: If you are using an IDE like IntelliJ IDEA or Eclipse, leverage its autocomplete and method suggestion features. Start typing the method reference, and the IDE will suggest applicable methods.
5. Search Java Documentation: Use the official Java documentation or online resources like Stack Overflow to find examples of method references and their applicable contexts.
6. Compile-Time Checks: Remember that the Java compiler will provide errors if the method reference does not match any applicable method, helping you identify issues during development.

This approach will help you effectively search for and identify suitable method references in Java.