I don't think Luffy will defeat BB 1v1
And I don't think Zoro will fight Shiryu
Nor is Sanji gonna defeat a Titanic Commander
Sanjuan Wolf might be KOd by Everyone together
And I doubt 10th Commander will fight SHs either
So imo we have 7 Titanic Captains vs 7 Straw Hats
Monster Trio will be absent and Rest of SHs going somewhere, that's when Titanic Captains start blocking their Path
Van Auger snipes from very far distances that neither Robin, Franky, Jinbe or Zeus can reach, so Usopp saves the day and snipe him
Doc Q will make all SHs sick and comes close to defeat them all, but Chopper finds a solution and defeats him
Catarina Devon uses her Powers to deceive everyone and cause internal conflict, but Nami outsmart her
Laffitte uses Hypnosis which gives all of them nightmares, but Brook counters him and gives him Nightmares instead
Burgess will somehow use his Strength to overwhelm SHs and could try to sink them, but Robin counters him and surpass his Strength
Finally, Avalo and Vasco will be defeated by Franky and Jinbe (Seeing Avalo's Gauntlets, he could be a Boxer while Vasco is Heavy Drinker and allows Jinbe to counter him however he fights)
So imo
Auger vs Usopp (Snipers)
Doc Q vs Chopper (Doctors)
Laffitte vs Brook (Hypnotists)
Devon vs Nami (Deceiving Females)
Burgess vs Robin (Battle of Strength)
Avalo vs Franky (Boxing Champs)
Vasco vs Jinbe (Water vs Alcohol)
Sanjuan Wolf vs all 10 SHs (Used as Hype Tool)
Shiryu is defeated by Mihawk
BB will be an Oars-Like Final Boss Fight
Zoro and Sanji aren't gonna defeat any Titanic Captain imo
And I don't think Zoro will fight Shiryu
Nor is Sanji gonna defeat a Titanic Commander
Sanjuan Wolf might be KOd by Everyone together
And I doubt 10th Commander will fight SHs either
So imo we have 7 Titanic Captains vs 7 Straw Hats
Monster Trio will be absent and Rest of SHs going somewhere, that's when Titanic Captains start blocking their Path
Van Auger snipes from very far distances that neither Robin, Franky, Jinbe or Zeus can reach, so Usopp saves the day and snipe him
Doc Q will make all SHs sick and comes close to defeat them all, but Chopper finds a solution and defeats him
Catarina Devon uses her Powers to deceive everyone and cause internal conflict, but Nami outsmart her
Laffitte uses Hypnosis which gives all of them nightmares, but Brook counters him and gives him Nightmares instead
Burgess will somehow use his Strength to overwhelm SHs and could try to sink them, but Robin counters him and surpass his Strength
Finally, Avalo and Vasco will be defeated by Franky and Jinbe (Seeing Avalo's Gauntlets, he could be a Boxer while Vasco is Heavy Drinker and allows Jinbe to counter him however he fights)
So imo
Auger vs Usopp (Snipers)
Doc Q vs Chopper (Doctors)
Laffitte vs Brook (Hypnotists)
Devon vs Nami (Deceiving Females)
Burgess vs Robin (Battle of Strength)
Avalo vs Franky (Boxing Champs)
Vasco vs Jinbe (Water vs Alcohol)
Sanjuan Wolf vs all 10 SHs (Used as Hype Tool)
Shiryu is defeated by Mihawk
BB will be an Oars-Like Final Boss Fight
Zoro and Sanji aren't gonna defeat any Titanic Captain imo