There is no shortcut to increasing followers on Instagram, you should post a reel every day because Instagram is supporting reels a lot these days, keep your content clean and use hashtags related to your niche and the most important thing to increase followers is to create videos that suit people's interests and that they like to share with others and interact with your followers regularly, apart from that, be active on other accounts as well, the most important thing is to focus on building an audience instead of buying followers because followers are the ones that help in the better growth of your account.