The number one blog for men's style, by a head and shoulders and a whole damn torso, is
Die, Workwear!
The big one for classic menswear is Permanent Style
Sprezza is cool. And my buddy Turner has a Substack.
And I have one too. The Second Button. I like it, but I'm biased.
I list a few more on my blog, some of them touch on lifestyle or culture but they're all run by menswear guys who know their stuff.
Oh, also, this is more gender neutral, but for Fashion with a capital F, try StyleZeitgeist.