How can I create a buzz around my product before launch?

Post about it on social media across ALL your platforms - I'd say 1 post 2 weeks before your launch, 1 post a week before your launch, and 1 post just the day before your launch. Apart from social media, if you have a newsletter, talk about it there so it hits existing subscribers and user base who are already familiar with the product. And obviously, discounts are one of the best fool-proof ways to get users more interested - who doesn't love a good price cut?

Post it in social media Do giveaways Offer discount/ coupon

start posting content on socials 3-4 weeks pre launch to get people interested, maybe provide some incentive for early signups. make sure youre posting content to the right crowd on the right platform.