I see these threads quite a bit on other sites. The thing is, they always die. There isn't a 100% guarantee to getting reviews. There aren't any shortcuts, and they sometimes can be few and far between. You're going to have to learn to accept that. There aren't many reviewers on this site, that much is true.
There's an attitude here that I don't like. This doesn't go for everyone, but a lot of people post their story, and wait for the reviews to come pouring in. They don't contribute to topics, read other stories, or review/comment. In other words, they want all of the rewards with none of the work. A lot of people just expect people to read their work simply because they posted it. It doesn't work like that.
You want to know how to get reviews? You have to be a productive member of the writing community. Come out of your shell, and contribute. I don't care if it's just replying to comments, anything helps. This community had been in a slump for far too long. It's getting better, but it's not enough. If everyone did one review a week, I can guarantee there wouldn't be a need for this kind of thread. I'm tired of people just showing up and expecting to get a trophy.
You want to know why this works? When you start being a part of a community, you start to get your name out there. When you start to get your name out there, people start recognizing you. When people start recognizing you, you might start a conversation. When people start a conversation, they become friends. And friends read friends' stuff. It's that simple. There's no community here, and it needs to change.
Okay, I'm going to do a bit of self-gloating for a moment. I don't mean to sound arrogant, but it is a good example. When I first posted Alien Poverty, it got nothing. No reviews, no comments, and not a lot of views. So, I started reviewing other works in hopes of people reviewing mine in return. It was selfish, but I was helping. Did people always return the favor? No, in fact, it was a while before anyone even commented on my work. As I reviewed more and more stories, I made quite a few friends. Alien Poverty went up in views, but still no reviews. Then one day, I finally got a review. It was just of the first chapter, but I was elated. A while later, I got a comment. Both of the people that reviewed/commented were people that I had talked with, or reviewed their story. I think that neither of them would have done that if I hadn't helped them out in one way or another.
Flash forward to about a week ago, and I posted Pain. I was blown away. Four different people had decided to comment/review within the first week. Most of them were people that I had helped out before. Would they have read my short story if I had just posted it and left? Maybe, but it's highly unlikely. Instead, I reviewed, contributed to topics, and made a name for myself. In return, I made friends that cared about my writing. That's how you get reviews. You have to go out and make yourself known.
TL;DR:
Quit whining about getting no reviews and earn every review you get.