Okay this is definitely not what you were expecting when you made this request and probably not whay you meant by 'man in uniform' but the first manga that comes to mind is:
Aien Catharsis
I think the driver uniform the uke wears is so sexy. I know it sounds weird but like honestly, lmk if you think so too or if you're like "wtf?" I'd love to know. There's a fairly somber vibe to the story but genuinely so worth the read. Happy ending.
I actually read it not too long ago and get what you mean! He has a neat and well put together feeling that's appealing! Somehow that also fits my criteria of men in uniform (⌒▽⌒)
Also! It has been a LONG time since I read Nevermore but iirc I'm pretty sure they have a couple uniforms since there's like a bodyguard and a spy or one of the two. It's a pretty long one and plot heavy though so might not be what you're looking for
Oh! And Blood Bank! The uniforms in Blood Bank are to DIE for I'm being so fr
Thank you a lot!!! I'm gonna check them out (▰˘◡˘▰)
Lmk what you think!! Blood Bank is an old fav of mine lol
BL recommendations where there are men in uniform? Or action based plot? Soldiers, policemen, detectives, firemen, secret agents, smth like that pls.