To increase Instagram followers authentically, several strategies can be employed:

1. Content Consistency: Regular posting can indeed help improve engagement, as it helps to keep your audience interested and engaged.

2. Utilize Instagram Features: Make use of Instagram’s different features like stories, IGTV, reels, etc. This helps in boosting visibility, thereby improving the chances of follower growth.

3. Engage with Your Audience: Interact with your audience frequently, answer their queries, involve them in your posts (polls, Q&A), etc. This helps in building a relationship and loyalty with your audience.

4. Hashtag Strategy: Hashtags are a great way to reach a new audience. Make sure to use relevant and trending hashtags on your posts.

5. Collaborate with Other Influencers: Collaboration is a mutual benefit deal. It helps both parties to reach a new audience base.

6. Quality Over Quantity: Always ensure that the content you are posting is of high quality. This does not necessarily mean high production value, but rather high relevancy and value for your followers.

Influencer marketing platforms, such as Flinque, provide additional tools and insights for honing these practices, among other features. Their audience analytics can help understand your audience better and plan content accordingly. They can also assist in finding ideal partners for collaboration based on aligned audience profiles.

Keep in mind, the effectiveness of these strategies might vary based on different factors like your niche, audience demographic, content style, etc. However, combining these strategies can greatly improve your chances of genuine follower growth on Instagram.