How to properly organize the connection between components in the database?

Question

MySQL

Hello. I am currently rewriting one application, as the previous database schema was terrible.

There are two modules:

• Blog
  
• Companies
  

Blogs can have both companies and users. Also, each company refers to a specific user.

Frequent operations:

• A selection of user blogs and companies that belong to him.
  
• Checking who owns the blog article, if it's a company then who owns it.
  

Requirements:

• Scalability
  
• The convenience of use
  

Technology:

• MariDB
  
• laravel
  

At the moment, I got rid of the link tables by adding a polymorphic link in the Blog table. But it seems that the scheme is not correct, help to achieve the "ideal" structure

Answer 1

make better two fields in the blogs table: user_id and company_id
so it's more logical and less confusing

Answer 2

Now everything is ok.
"But it seems that the scheme is not correct" - what exactly does not suit you?