There are many ways, but first you need a base, to be able to build a base you must use websites like Befollowers dot com, you can get thousands to get even more organic, otherwise you will be ignored like the rest of us. Then I would highly recommend:
This is the best way to be searchable. Look for some popular hashtags on you rniche and combine them with some less popular, but more specific.
Add to your story with geolocation and hashtags
Business accounts often underestimate the power of Stories. Use them! And add the geolocation and hashtag in order to appear in more searches.
Follow your competitor’s followers
If they follow the competitor, most probably they will want to follow you as well.
After you follow, you may want to like or comment to 1-2 photos, just to raise the chances to follow you back.
It takes lot of time but it worths it.
Interact with people’s content
You can search the hashtags you are interested in and then interact with the content. People will notice you and if your content is good enough, some will follow you.
>>Some more advance tactics are:
These are groups formed in Facebook or Telegram. You put content there and then every member interacts with it. This will get you high reach and more chances for people who discover you to be willing to follow.
Get influencers to mention you
Collaborate with influencers on your niche. They have a lot of followers, so if they mention / tag you, you will get a lot of exposure.
Offer them something before you request a mention.
There are services who sell Power Likes. These are likes on your content that come from large accounts, with content similar to yours.
When an account with hundreds of thousand followers like your posts, they get much more engagement.
All the above are some ways you can follow to reach your first 1000 followers but at the end of the day it all comes down to one thing: Consistency.
You need to be consistent with the content you upload and the actions you take. Only then you will be able to see the number of your followers increase!