The best alternatives to WikiWand are Modern for Wikipedia, Wikifox, and Wikipedia. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of WikiWand?
Hurree— The smarter, simpler way to analyze your data
Enhance your Wikipedia experience with a beautiful, clean, modern design that's fully customizable. Once installed, this free extension will simply apply the new look and features to existing Wikipedia article pages, without you having to do anything.
Wikifox (beta) is a clean and simplified version of the real Wikipedia! This works with official Wikipedia, so nothing to worry about!. It has a good and clean user interface with Dark, Light and custom themes! Check it out : https://wikifox.ml/
Explorer by Batou is a knowledge tool designed to explore the breadth and depth of human knowledge. It is the first iteration in a series of approaches to user interface design. Stay tuned!
WikiYarn is an application to browse the vast knowledge of Wikipedia quickly and efficiently. It works as a research/reference tool as well as a knowledge recommendation engine made for everyday use and for the general public.