I wouldn’t recommend it but I start my frontend projects in the defunct enyojs boilerplate. It’s gone now but Enyo had Onyx. A fully featured component library. I’ve never seen a component library as tightly coupled to a JavaScript framework. Sadly, as mentioned, enyojs is no more. Saying that reactjs, the successor to enyo is an adequate replacement. Some of the team made a react fork called Enact Enyo+React that brings back some of the great onyx components. But I haven’t used it as there are many other component libraries available in the react ecosystem to choose from.

It’s also tempting to go jamstack to start a new frontend project. Some of these boilerplates are very bleeding edge however and you will be spending a lot of time learning the convention of each individual boilerplate. I’d be hesitant to start a new jamstack project.