Minor image can be used to create the illusion of cover, that can be almost as good.
You can take cover behind your allies, that is often effective.
We had a character once who carried a barrel around with him, and would jump into it to get cover. Of course, him being a barbarian make that a bit strange...
Perhaps you meant to say minor illusion? If so, I second this.
TFD is not terribly easy to position precisely in 5e.Tenser’s Floating Disc, if loaded up with the right stuff, could be used to create a mobile cover station.
It follows you around, staying w/in 20', but it doesn't run away from you anymore if you try to move closer to it. So exact positioning is an issue, but just hiding behind it is easy.TFD is not terribly easy to position precisely in 5e.