I agree "bro" makes me a little queasy...something a little too chummy about it, with the
possible exception being that you really
are my "bro" (maybe).....hmmm...
"Man" can be used as either an expression of relief ("Man, that was a fuckin' close call, eh?") or sometimes when waxing quite serious ("C'mon, man, you can't be serious.")
Whereas "guy" has a lighter feel to it... with almost a hint of compassion: ("Guy, need some help?" or "Guy, take a breather.")
I like to toss in an occasional "mate" to add emphasis to irony or sarcasm. But "DEWD"!! That's strictly for laffs. "DEEEEEEEEWD" You almost lost yer ASSS on that one!!!"
"Holmes" or "homie" is way too dated,imo, but not nearly so as "jack".
And I know enough that "ese" is off limits to anyone non-Hispanic. I've read where it has be used like "homie" or "bro"
among Hispanics, but (and correct me if I'm wrong) I sense that "ese" applied to anyone
not Hispanic is equivalent to "you dumb f**k"; (to which someone undoubtedly will reply, "You got
that right, ese.")