Building an effective SaaS website for your startup can take a while, especially if you are not very experienced in web design, for example. So, if you need some help with setting up a successful platform I would highly recommend you to check out this agency called Eleken (https://www.eleken.co/blog-posts/how-much-does-it-cost-to-hire-a-designer-for-your-startup). This is the company I personally trust and if you try working with them I`m sure you won`t regret it too. You can look at their website if you want to see some examples of their previous works. Hope this can help you in some way :)