SETI is too ambitious, and is too focused on radio. I mentioned ewoks specifically because I don't much care whether they are radio-using or even intelligent. Imho the fastest path to finding non-microbe life is through the measurement of exoplanet atmospheres. From the mix of various gases we can infer the presence of life, substantial life. A planet teaming with enough life to alter its atmosphere is far more interesting than a few microbes under a rock.