I don't think the .357 has been readily available since 2015/early 2016. I've been trying to find one since then. Galleryofguns website had at least a dozen different models - stainless or blued - 16", 20" or ,24" barrels either round or octogon. Now they have only 4 different models and none of them are ever in stock.
The .45's were in stock at a number of places last summer and the .44's were also available. If you want a .357 today your only option is using used.