I need to do a foreach item on a class

This is what I did, but it looks messy, is there a way to make the class a list class directly from the class ?

List<MainSettings> lMainsettings = new List<MainSettings>();
            lMainsettings.Add(xx);
            foreach (var item in lMainsettings)
            {
                if (item.Country==null)
                {
                    xx.Country = "Canada";

                }else Country.PlaceholderText = item.Country;

                await _Settings.CreateTheSettingsFile("mySettings.xml", xx);
                Country.PlaceholderText = item.Country;
            }