One of the most popular slider library’s for creating javascript sliders are:
Slick – js slider library
https://kenwheeler.github.io/slick/
Vanilla JS
Swiper – js slider library
Swiper JS is available for many libraries such as VUE, React, Angular or Svelte it is also available in vanilla JS (pure JS). No matter what what stack you are using. Swiper JS get you covered.
Implement Slick to WP Divi theme (without plugin)
You can use any of those plugin to create slider on you page. There is even a video on how to implement :
https://divilife.com/divi-carousel-without-a-plugin