Use Hashtags
Hashtags are an Instagrammer’s best friend. I recommend using 3-7 hashtags per post for the best results. Hashtags should be related to the post content and/or your industry or niche.
Post Every Day at Peak Posting Times
You must be active on Instagram and post regularly. You should post a minimum of one photo or video per day. Not a lot of people consider this when they post a picture. Do research on what time most people will see your post and make a schedule of sharing posts during that time period. This will maximize the reach of your posts.
Advertise on Instagram
One of the many advantages of advertising on Instagram is targeting. Rather than only reaching your followers and those searching for your hashtags, Instagram ads enable you to target relevant users that you didn't even know existed! Marketing your business on Instagram is about building a quality audience of users who can benefit from your business, who can provide helpful feedback for your business, and who can help spread the word about your business.
Collaborate With Other Brands And People
It is very important to link yourself and make connections with various famous people to get more new connections. To get more followers, you should try to link-up with famous brands so that they can help in promoting your ideas and; thoughts to those people who are already associated with them and; Thus you will be able to get in touch with many other people.
Instagram story
Only two years after its launch, Instagram Stories has more than 400 million daily users. In fact, more people use Instagram Stories than Snapchat. Think about making shareable, relevant content for your story, if it's not already done.
Instagram IGTV
If you have a video that is longer than 60 seconds then make use of Instagram Tv. This format helps to keep your audience hook for a longer period of time and thus you have good chances of having increased conversion.
Share your Instagram posts on other social networks
Use other social networks to amplify the reach of your Instagram posts. Since Instagram has hundreds of millions of users, it's quite possible a majority of people who follow you on other social networks have an Instagram account. When they see your posts, they can go to Instagram and visit your profile.