Great advice Gabe because i have done the same thing. Always looking for quick ways to get followers in twitter. The only way it worked for me was to show up and shower everyone with my tweets. Yes its tiring and a huge time waster but its the only way for you to get more users. But from what i noticed is that the more i tweet the more users i will get.
There are software and websites where you can set up tweets to launch at anytime you set it for. I think Trump uses that to send 3am tweets.
Also there is a free software called Crowdfire where you can use hastags to get followers. You should check it out for yourself. This helped me get a lot of followers on Twitter.
Well gotta go! Holding it down at home whike hurricane Matthew is fucking shit up!