Looks like there's 7 words that could match BLA-E (just looking at /usr/share/dict/words)

'blade', 'blake', 'blame', 'blare', 'blase', 'blate', 'blaze'

wordle tends to be more familiar words, so I'd ignore blate and blake. So now we have D, M, R, S, Z

Doesn't look like there's a word that has 4 of these letters to guarantee on next guess. So need to try for the most likely 3 letters. Could be 2 more guesses, but still ends up better than a 1 in 5 chance.

I believe only 4 are in the wordle word list though: - blade - blame - blare - blaze

I pulled the wordle word list from the page source of the game.

DERMS, DORMS, DRAMS (mentioned), DRUMS

ah my word list was missing plurals, good call

DRAMS