receiving packages and cooperation

Hi everyone! 😊 I have a question for those who already work with brands or are just starting out — what companies do you recommend for a start when it comes to collaborations, PR packages, gifts, etc.? I have 550 followers on Instagram and I would like to start working more in this direction. Can you recommend brands that are open to micro-influencers, send PR packages, or are willing to work with you, even if you don't have thousands of followers yet? Thanks in advance for any suggestions! 💕 My Instagram, if anyone would like to check it out: elizasytek