I'm looking for manga where there's a deep and frenemy kind of relationship between 2 Guys. They always fight but still are best buds. It can be a shoujo, shounen, mystery, supernatural, fantasy .
no yaoi /shounen ai plz. Although I love it but right now I only need pure male friendship.
Manga that I've read are:

Mekakushi no kuni
https://www.mangaupdates.com/mylist.html

pureblood boyfriend
https://www.mangaupdates.com/series.html?id=55016

Zig Zag
https://www.mangaupdates.com/series.html?id=55016

Cyboy
https://www.mangaupdates.com/series.html?id=35142

And others...
I love the bromance...so plz..need some recommendations.

Hmm, I just started reading this that I think you might like:

Yankee to Yandere no Karera ni wa Tomodachi ga Inai
https://www.mangaupdates.com/series.html?id=109240

It's a comedy/shoujo(?) - about two guys, one a kind of delinquent pervert and the other a smart but manipulative guy and their friendship with one another. They argue with each other a lot, and say they don't like each other but somehow always end up helping each other out. It's very funny and the art is very nice!

I won't spoil it, but there's a reason they argue often 🤣 I think it's revealed early on, end of chapter 2 or 3?

Hope this helps!

Oh, now this is a nice topic!

Definitely Game x Rush. It has the exact relationship you're looking for, imo.

Pet Shop of Horrors is another good one. The sequel, too.

xxxHoLic and its companion manga, Tsubasa Reservoir Chronicle. The former is a better fit, as the two guys in the latter evolve into proper friends over the course of the series, though the bickering continues.

Makai Ouji - Devils and Realist had lots of relationships like this, iirc.

Sono Te o Dokero, according to comments; I've never read it myself.

Shuuten Unknown - They become real friends later on, I think. Definitely enemies at the beginning, though.

Yoshitoo-sama!, again according to comments. Sadly, unscanlated.

Cuticle Tantei Inaba and Teen Spirit, perhaps. My memory's a bit hazy about these.

Vampire Doll, though the fighting is purely for fun.

Atom - The Beginning, maybe. They're partners in robot engineering, but pretty much always bickering. However, they do get along very well when it counts, so you may not like it. Ditto for Coda and Fukigen na Mononokean.

Although I had read a little of it...long back..I had forgotten the name . Thanx a lot 4 reminding me. 😎

@calstine
OMG. wow. Now that's a great list of recs. Thanks a ton. 😃 😀