We've all known goku to be a saiyan who has surmounted all odds to defeat his foe. He defeated vegeta, frieza, buu, jiren and others. But there are still dragon ball characters who are crazy stronger than goku, some of them are;
5. Broyly 
We should know of broyly from the dragon ball movie of broyly. When he was still an infant, he was banished from the saiyan world by vegeta's father because his power level reading was to strong even stronger than the Prince. He lived in an unknown planet fighting and training his whole life.
During his fight against goku he was able to defeat him and even still he defeated vegeta using his berserka mode. Despite the fact that goku was able to defeat him by combining with vegeta. Goku can never defeat him in a one on one match.
4. Whis 
Here is another incredibly strong being, he is an angel created by zeno, and he is the angel representing all of universe seven (7). His speed and power are beyond the charts, he possess enough power to discipline a god, yes he can easily defeat the god of destruction whom goku had 0% chances of winning.
3. Moro 
Moro is know as " planet eater Moro" is a wizard which threatened universe seven about ten million years ago, he defeated both goku and vegeta by absorbing their ki. So just by that we know just goku cannot defeat Moro, infact goku can't even compare to the strength of Moro.
2. Black goku 
He us the combination of zamasu and the body of goku, all of goku and the rest of them could not defeat him, I'm saying goku, vegeta, gohan, future trunks, piccolo and others. The combination of goku's, vegeta's and trunks final move was like nothing. To defeat him zeno had to erased that world and create a new one surely goku would stand absolutely no chance against him.
1. Zeno 
Now were in the number one, he is the omni king the god of gods, he could destroy goku with just a snap of his finger or maybe with a single word, even eleven universe would stand no chance.