1,000 keys giveaway on instagram

We have more than 1,000 STEAM random keys and we want to do the raffle but until we get a lot of followers we will not be able to do the raffle.

How can I get more followers?

The instagram to follow is https://www.instagram.com/adictosalmando every day keys in your stories .

also great sweepstakes if they reach these followers:

100 followers = raffle of 10 RANDOM KEYS.
1.000 followers = draw of 100 RANDOM KEYS
10,000 followers = drawing for 250 RANDOM KEYS
100,000 followers = drawing of 1,000 RANDOM KEYS
1,000,000 followers = JACKPOT

please tell me how can I get my reel to reach more people?

thank you very much