Newbie MVC question. Repeating myself in controller

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C#

ASP.NET

MVC

Still brand new to the MVC pattern, I'm unsure where to put some code.

In my controller action method, I'm retrieving database records and loading them into a viewmodel which is getting passed to a View. I've now got a different Action method in the same controller that retrieves the exact same records.

I'd like to put records retrieval code into its own method. But where do I put it as far as best practices go? A new method in the same Controller? Or in my Services namespace? or in my ViewModels namespace?

public ActionResult Index(int id)
{
    var model = db.Reports.Find(id);
    // replace with GetReports(id)
    // or Models.Services.GetReports()
    // or ViewModels.GetReports()
    return View(model);
}
public ActionResult ExportToExcel(int id)
{
    var model = db.Reports.Find(id);
    // replace with GetReports(id)
    // or Models.Services.GetReports()
    // or ViewModels.GetReports()

    return ExcelResult;
}

What I have tried:

The code works. This is just a best practices question.