Recommendation for Testimonial Plug in

There are a lot of testimonial plugins. You should review each one against your particular set of requirements.

https://www.ads-software.com/plugins/search/testimonials

Thanks again.

I think you should go wi CPT UI plugin. It allows you to create custom post types and show them in front end any way you want.

Most often testimonial plugins are just that. Custom post types that are displayed with various sliders and can be a bit heavy on your load times.

How heavy on load times? REally slow down user experience? Maybe just design in old fashion html page.