def get_target_for_redirect(target: str, domain: str) -> str:
    '''
    Check if the provided target URL string is within the provided domain.
    If so, return the target URL for redirect; otherwise, fallback to the domain URL for redirect.
    Use https protocol.

    Examples:
        get_target_for_redirect('https://music.example.com', 'example.com') -> 'https://music.example.com'
        get_target_for_redirect('https://example.com/service', 'example.com') -> 'https://example.com/service'
        get_target_for_redirect('https://blog.example.com/posts', 'example.com') -> 'https://blog.example.com/posts'
        get_target_for_redirect('https://another.com', 'example.com') -> 'https://example.com'

    Args:
        target (str): The target URL string.
        domain (str): The domain string, without protocol.

    Returns:
        str: The URL string for redirect.
    '''
    # BEGIN SOLUTION
    from urllib.parse import urlparse

    target_url = urlparse(target)
    domain_url = urlparse(f'https://{domain}')

    if target_url.netloc == domain_url.netloc or target_url.netloc.endswith(
        '.' + domain_url.netloc
    ):
        return target
    else:
        return f'https://{domain}'
