Could fake it with McKinstry for a while? but Kreidler is not a ML hitter; and Baez will get a look, but as you say, almost certainly fail/flail; maybe by then Kim would be healthy?
after NYY are done shuffling infield, one guy to look at is Oswald Peraza. was a top prospect with Volpe and Sweeney, but injuries derailed good start; he is just 24, a good IF defender, a RH bat, but out of options so maybe they are moving on