var colContent = from content in metaData.Content
                             where SqlMethods.Like(content.TitleBrief, "Men%")
                             select content;

Error is

The binary expression '(Like(EntityField(LPLA_1.TitleBrief AS TitleBrief), "Men%") == True)' can't be converted to a predicate expression.

What is SqlMethods?

You should use: where content.TitleBrief.StartsWith("Men")