Instagram is quite popular especially with the photogenic people. There’s no point of taking really incredible pics and have no one appreciate them. The platform works by allowing you to follow people who can then follow you back. You can also follow back the people who have followed you. Free followers’ is thus a good way to boost your presence on instagram and also get more people viewing your pictures and posts. The best way to do this is by being very active on instagram on a daily basis. This way the followers find you approachable and thus follow you in masses.
You can also try posting photos according to what is trending in the online community. The trends are often just a wave and the only way you get it right is by constantly being aware. The free followers will come because they like a person who is up to date and can thus entertain them with relevant material. You can look at the photos other people are posting and how they are doing it. You can also check the filters list for what is trending.