Any binoculars would do. Many people already have an old pair hiding in their closet. 8 x 50 means the binoculars magnify objects 8 times and have the front lens diameter of 50mm. Most of the deep sky objects are faint. Light gethering power is most important.
Magnification is less important.
In fact, many objects looks better in lower magnification. For a hand-held binocular, any pair of binoculars with magnification greater than 10 is difficult to hold steady for viewing. You can get a headach from using it. Q. I really want to get a telescope. I recommand for a beginner to buy a Dobsonian telescope.