The daily limit is 200 a day. 10 follows and unfollows per hour would keep your account safe and saves your account from being suspended. Also, there is no limit on how many people can follow you. Remember to start slow and then gradually increase the number of following and unfollowing week by week.
What happens after 10k followers on Instagram?
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.