ALDI has helped me
So, some time ago, Trader Joe's discontinued their Spicy Brown Mustard. I wrote TJ's, and that did nothing. The employees were predictably empathetic about the discontinuation. On social media, people were willing to suggest similar mustards. Somehow none of them were satisfying enough. Yeah, first world problem, I know.
Finally, a good enough solution has been found. ALDI, related to TJ's, was selling their Spicy Brown Mustard and I am using it to my satisfaction. Whew. It isn't the same, of course, but the taste is comparable.