Depends on your niche.
Personally, these are the channel I suggest,
If it's b2b saas > LinkedIn, reddit, facebook, etc
if it's b2c > twitter, reddit, facebook. etc
if it's d2c > tiktok
If you have time you can try all the channels
Creating a downloadable template that solves one of your audience's challenge. Really quick to create, easy to promote, it helps build a qualified database that you can then reach out about your product or service
Viral loops. Adam Fishman was on Harry Stebbings podcast today talking about using Viral Loops for growth. Worth a listen.
https://www.thetwentyminutevc.co...
The following are the best growth hacks; you do not have to spend anything on these.
Community Building
Use Social media
Hijack Trends
Integrate virality
Endorsements
If you are in the beginning I would keep it simple. Direct contact on potential customers (best), find the communities where your customers are and contribute (be known to help, then advertise your product) and tell your story (and interesting updates) on the relevant channels (twitter, medium, linkedin, etc).
Best Growth Hack Techniques and Tips to Boost Conversions
Find social media platforms your competitors aren't using. ...
Partner with another company to share audiences. ...
Give something away for free. ...
Conduct constant A/B testing. ...
Change up your landing page layout. ..
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