There are several ways to create mocks in Mockito:

1. Using mock() method:

List<String> mockList = mock(List.class);

2. Using @Mock annotation:

@Mock
private List<String> mockList;

3. Using @MockBean (Spring Boot):

@MockBean
private UserService userService;

4. Using MockitoAnnotations.openMocks():

@BeforeEach
void setUp() {
    MockitoAnnotations.openMocks(this);
}

The annotation approach is preferred as it makes tests cleaner and more readable.