The Internet is indeed a crowded place, you need to be smart and creative to stand out, you will need a website which is eye-catching but also designed to display your content and represent your brand.
The design or the theme will help you in grabbing eyeballs and let people engage with your content.
A theme is not just how the website looks, it should be interactive so that a person visiting your website should be engaged for a long time.
And creating an interesting theme is as simple as it gets with WordPress. WordPress themes that you can use on your business website.