Blackbeard is arguably the biggest counter to Luffy's Gear Fifth. Most characters can only hope to survive it. Meanwhile, Blackbeard can just cancel these Devil Fruit powers with his Yami Yami no Mi. Cartoony physics is a very broken ability in the One Piece series, but it has its limits.
Goku is one of the strongest characters not just in Dragon Ball, but within the entire anime world. Luffy's biggest mistake would be to get on the wrong side of Goku. There isn't any competition and even if Luffy got over a hundred attempts to beat Goku, he would still be unsuccessful.
Despite Kaido's tremendous power, facing off against such a monster in combat is quite difficult. Luffy's Gear 5 lets him pull off some of the most ridiculous feats in the story such as making his fist as big as an entire island, as is expected of a power termed to be the most ridiculous ability in One Piece.
Dragon Ball's Goku has always been absurdly strong, which means that he can still beat many of One Piece's strongest characters. Only a handful of anime franchises can say that they have maintained a global presence for more than two decades, and One Piece is one of them.
HAS ANIME LOST ITS MIND!? GOD VS GOD GOKU LOSES TO SUN GOD LUFFY??? Dragon Ball Super VS One Piece
Who will win Goku or Luffy 5?
Essentially, Goku is already a formidable foe without his Saiyan abilities, and this combination would make him the victor against Luffy's Gear Fifth. So far, there are four major Gear Fifth techniques that Luffy has shown.
Due to the number of drawbacks the Baryon Mode brings, Luffy will probably clinch victory in Naruto vs. Luffy if they break those modes out. Naruto vs. Luffy, in Baryon Mode and Gear 5 mode, would probably end in Luffy's victory since he's too unpredictable for the more grounded Naruto to handle.
Gear 5!!! — Luffy names the technique. Gear 5 ("Gear Fifth") is a transformation resulting from the awakening of the Gomu Gomu no Mi. It was first seen during Luffy's final battle with Kaidou on the Skull Dome rooftop.
Luffy wouldn't exactly peat Deku easily, but he'll still beat him. Deku would only win if he had full access to One For All, including all the quirks of the previous users. He already has one, but it'll probably take awhile before he gets them all. So in short, Luffy would win.
In a nutshell, Naruto wouldn't just win but he'd also destroy Luffy. But don't be discouraged, One Piece fans; Luffy is powerful in his own way and is part of a distinct universe. While he's not going to be able to take on Naruto He will certainly be able to defeat Kaidou.
So, a new Gear in order to overpower Kaido is excessive, because Kaido is already the strongest pirate, if Luffy were to surpass him now, it would limit his growth later and we know he still has to achieve his Devil Fruit Awakening.
Gear Five's color changes were somewhat elaborated on in Chapter 1045, "Next Level." Yamato described Luffy's hair and clothes as having turned white. Kaidō described the form as pure white. Both of these can mean different things, but they at least made clear that Luffy's new color scheme is primarily white.
With what One Piece fans have watched Luffy do in the Wano and Onigashima arcs respectively, it's fair to say that Luffy is a top-ten strongest character in One Piece right now. His mastery of Ryou and his awakening of Advanced Conqueror's Haki presents so many more creative attack opportunities for future fights.
9 Can't Beat: Luffy Has Nothing To Counter Sasuke Uchiha
Sasuke is arguably one of the strongest rivals Naruto has ever faced. Aside from his incredible hand-to-hand prowess, Sasuke is a great strategist capable of creating complex battle strategies on the fly, making it very likely he can outsmart Luffy.
Naruto is extremely fast, able to move faster than even the most powerful Sharingan can track, but that doesn't make him the fastest in the anime universe. Luffy, as he has powered up, has become faster and faster. Able to expand parts of himself and use the air to move quicker, he constantly speeds up.
After awakening the power of advanced Conqueror's Haki and later awakening his devil's fruit, Luffy was finally able to put up a fight against Yonko Kaido and match him in combat. At a certain point, it was established by Oda carefully that the fight was more than just a fight for Wano.
The mere comparison of strength between the two characters is crazy. Goku is an extraterrestrial being who has to lose a fight in order to get stronger. Saitama is a man that can defeat any foe with a single punch. If the two of them were to face off in a one-on-one battle, Saitama would easily win.
In the end, we have a clear "serious" answer to the question of can Saitama from One Punch Man beat Goku: no he cannot. While Saitama's base form strength is much greater than Goku's, Saitama's lack of battle IQ and experience would come back to bite him during this fight.