I personally never had that kind of business, but I believe that with the right research it can be achieved. because, when I take a general look on all of the hostings providers they are all resellers of resellers, just like the fokin smm panels. However, it's more challenge to manage hosting company than smm panel. if I want to open a hosting company, the first thing that I will learn about is the networking fundamentals, when you got the basics you can start to think about the next step
goodluck