If you have less than 2000 followers you won't get good engagement.
I can't say this on Twitter but I’ll share the secret with you here (please keep it to yourself)
Every RT you see from big accounts is either traded or paid.
- Traded: 2 accounts of the same size RT each other’s tweets every day.
- Paid: A small one pays a big one for RTs.
Now, when you are starting you have a few options:
- Join engagement groups.
- Buy RTs from bigger accounts.
- Trade RTs with accounts similar to your size.
- Twitter Ads.
I haven't tried Twitter Ads myself yet, so I’d recommend doing 1,2, and 3.
I boost all my clients’ content with my network of 2M+ followers which helps us go viral easily.