Kaguya Otsutsuki easily has the most chakra out of every character in the series. As an Otsutsuki, she already has a tremendous amount of chakra, but after consuming the Chakra Fruit and obtaining the Ten-Tails, she became completely unmatched. She is capable of repeatedly using techniques that require a lot of chakra.
Orochimaru is arguably the most powerful of the legendary Sannin, and his greatest desire is to learn every secret that the world has to offer. His knowledge of different jutsus and techniques even surpassed Sarutobi, and that includes the ability to use all five nature chakras.
Shinobi capable of using all five natures include Hashirama Senju, Tobirama Senju, Hiruzen Sarutobi, Orochimaru, Mū, Kakashi Hatake, and Victor (in the anime) are the only shinobi known to have done so via normal means.
Yin-Yang is the best chakra nature there is, despite how powerful Dust is. And no, it isn't because of genjutsu in the same way Yin was stronger than the other basic natures. It's actually because Yin-Yang is able to completely cancel out all other ninjutsu.
Minato was also an adept sensor, able to detect chakra signatures from great distances. For closer targets, he could detect everyone within an area by placing his finger on the ground. Minato was also proficient in the nature transformations of Fire, Wind, Lightning, along with Yin and Yang Release.
You're right, he does have the fire chakra nature……. and the wind chakra nature. In fact, Madara has all the five elemental chakra natures: Fire(火), Lightning(雷), Wind(風), Earth(土), Water(水), Yang(陽), Yin(陰):
1 Naruto Uzumaki
As a user of Six Paths Sage Mode, Naruto can use the Yin-Yang Release. During the war, Naruto was able to save Might Guy from dying, and he also restored Kakashi's lost eye. However, there are limits as Naruto wasn't able to save Obito, who was struck by Kaguya's All Killing Ash Bones.
The Zero Tails is the only type of tailed beast that was not created by the Sage of the Six Paths, Hagoromo Ōtsutsuki, alongside the other tailed beasts. However, in the film, the nine-tails, Kurama, reacted negatively upon its appearance implying that he has a past experience with the Zero Tails.
Crocodile lives in water and water is the element of sacral chakra. Crocodile is a symbol of laziness, insensitivity and hidden dangers that are rooted in this chakra. It is located in the innermost circle of the chakra.
In Hinduism and Buddhism, chakras are thought of as energy centers in the body. They mark places where spiritual energies intersect.
The Kundalini awakening originates here. Many describe it as the subtle red Bindu or drop because when activated it exudes a red aura. It is linked with the earth element, the action of excretion and the sense of smell.
The root chakra - Muladhara
The root chakra, or Muladhara in Sanskrit, is the first and primary chakra, believed to be located at the base of your spine. It is linked with the color red and the element earth.
Possible symptoms of an imbalance of the heart chakra are jealousy, holding grudges, grief, hatred, feelings of unworthiness, fear of betrayal, and physically, heart problems. Gratitude practices are healing for the heart chakra.
The dysfunctional archetype of the Root Chakra is the Victim. The victim feels helpless, stuck in a state of fear, with no sense of empowerment. Being a victim is paralyzing on the psyche and the body.
There is no such thing as infinite chakra. Its energy. All energy is finite. The 9 tailed fox being able to absorb and pass along nature energy can give the impression of infinite chakra however, simply because the 9 tails reserves are already so great, and then it multiplies them via nature energy.
The navel or Manipura Chakra holds our sense of power and enthusiasm. When out of balance it may cause a person to become domineering and a power monger.
Cursed energy techniques are more similar to superpowers in the sense that each one is incredibly different from the next. Chakra, on the other hand, is mostly based on natural elements. Each person has a certain affinity for an element and is strongest when they base their techniques around that element.