I think Pittsburgh and Cleveland are two ideal choices, for many of the same reasons. They both have strong tech pipelines at Case and CMU, affordable prime real estate, openness to offering incentives, and are are highly under-rated in terms of livability. Both have shown they can attract tech workers with options (CLE with its hospital system, Pitt with Google and others).They are both disadvantaged by the flight availability metric, but I think this could be induced by demand from Amazon.