I suggest you don't use bots or any artificial intelligence when you're getting started, since what people are looking for is real connection with a brand/account. Think of your reason why, and what you are truly aiming for. Share your content with the people you know, look for similar accounts to yours and do follow for follow. Of course, you can unfollow at any time, or collaborate with other accounts in challenges, giveaways or contests. Post high quality content only and try to keep your feed organized and aesthetically pleasing. You can even pay bigger accounts for shoutouts, but make sure you have something to offer to your audience.
If people like/love what you post and offer, they will recommend it to their people. That's a fact.