Most startups struggle with getting enough traffic so they can get enough leads. Usually what they're looking for is quick ways to get more visitors.
However, I think they're missing something deeper. Before you get more traffic you need to have answers to these questions:
1. Do you have a well-defined target market? Who are they?
2. Is your target market reachable online? Where do they congregate?
3. Do you know their primary struggle? What is it?
4. Do you know how your product helps them make progress? How does it help?
5. Do you have product/market fit? What proofs do you have? Examples: high NPS score, large number of pre-orders)