@Myamob7 I'd say start at this one, https://mangadex.org/title/2432/baki it's where shit goes crazy and after that initial tournament story that's a bit hard to read and not properly finished yet. This story is when shit turns it up to 12 and never lets go.
Its gonna fucking suck if hanayama loses here for power scalings sake, orochi would be a better fall imo, but doubt itagaki will let them go with all wins
the sumo guys are getting destroyed, but after all they're just the warmup to the whole "Sukune" thing? Still think the idea of sumo wrestlers having a no holds barred fight is ridiculous as hell but at least they're not stomping the story's actual fighters