I need a new landing page for my website

Description

Our current gym website is still in 2010. With the growth of social media, we only really need a fresh, slick, professional landing page which has:
- who we are-what we do- where we are located- some great images.- results- Then ask them to apply to our private gym by completing a form.
Links to our social media, google reviews and that type of stuff too.
One thing I'm aware of is even though we can to simplify our website and improve it, especially for mobile phone users - I need to make sure it contains enough info to keep and improve our google ranking!!!!