Is there really a way to make earn a substantial income online?

-Does anyone know of any honest ways to make decent money to live off of online? Are there any ways to work independently or build your own business? I know that I will have to put in work and I am very much willing to do so. I know there are ways to make extra spending money, but I don't know if there are any serious ways to make significant earnings. I would really appreciate honest responses. Please do not promote scam opportunities. Thank you.