Spells In Secret is available. I will note that it was outlined in 2018 so any topicality is actually coincidence.
But it's percolating outward. With a few adventures. The Amazon US page claimed the paperback was "Currently Not Available" in spite of telling me it was live, and the UK page claimed it was "JXG-Women Classic Fit Solid Long Sleeve Round Neck Knit T-Shirt Tops." The first is cleared up but the second, as of now, is not.
But you have your choice of venues already:
Barnes & Noble