Double Magazine Mockup
The best Magazine Mockup to convert your flat designs to a realistic rendering similar to the one in the preview above. This is a photoshop file, psd high resolution which is easy to customize with smart object layers.
Free

The best Magazine Mockup that you can display the cover and the first page of the magazine layout. This mockup use Smart Objects where you just have to place your design and immediately you will see the design reflected into the mockup.