You want to use images between text in your CKEditor, but you want to use image styles too... It is possible.

After activating your module do the settings... In wich textformat you want to use it?

File Entity Browser

This module takes some time to install, but it is a useful tool. You need to install 5 modules and 3 third parties. You can use composer, but it can be done manually too.

For those who use composer. Look at the link on the module site. You need to use these commands.