The best placement for testimonials.
Any time your website makes claims about your services, present them with a testimonial that backs up what you’re saying. It’s evidence that what you’re saying is true. (It’s like in university when you had to cite your sources – same concept.)
Don’t have a “reviews” or “testimonials” page. Spread them throughout your content.
I think doing this is the most important thing you could do. Once you have enough to spread around your website, then you can have another page that’s dedicated just to reviews as well.
But it’s MORE important to present them with your bold claims about who you are and what you can accomplish.
I don't read testimonial pages, and I'm not convinced many people do. So place those valuable testimonials where your viewers will read them as they read your content.