Take 30 random elements from list

I have a list of strings containing loads of hashtags with texts. ex #csharp #java ect. each hashtag is a own string in a List. I now want to randomly always console.writeline 30 items of that list.

List

List<string> Hashtags = new List<string>();

Writeline

 foreach (var x in Hashtags) {

                Console.WriteLine(x);
            }

Ideally i never wanna have the same hashtag in the random 30.