If you are having trouble getting members, then a good way to get people interested is by increasing your guild’s page views.
I know from experience that before I had my own guild and I was looking for one to join, one thing that would stand out was how many page views a guild had.
The more page views your guild has, the more that visitors will think your guild is popular because so many people have looked at it.
A guild with page views into the thousands is good. Most people like a popular guild because they know it will always be active.