When developing front-end and back-end, select the framework... It's not easy.

Number 1 :

If you're tired of bootstraps, try http://foundation.zurb.com/ In addition to this, there are many other frameworks that have added several designs derived from bootstrap

Number 2 :

Angular and reaction are frameworks used at the front end, not in backend languages such as express. The main purpose is to structure a complex, jjamppong-like sauce. It's an abstract answer, and in fact, the part that we use a lot is used for AJAX and HTML bindings.

From a jquery user's point of view, Jquery is structurally reducing what's possible. There's something called backbone. There's a lot of course.

I heard that the existing angular is not used often, and react and angular2 appear, but there is no harm in learning. But if it's me, I'll learn how to react at this point in time

Number 3:

I recommend node.js + express + bootstrap + mariadb + jquery as you do now

I recommend node.js because it comes out fast without doing anything If it's a community website, it's good for mariadb

If you think the bootstrap is too dry in some cases, try using the foundation above.

Actually, Jquery is enough for a small community, but if you are willing to use it later and want to learn it, you can add react or angular.

Putting two frameworks does not mean that you do not use jQuery at all. I also use it for animation purposes.

In addition to No. 1, we recommend http://getuikit.com/ as a framework with a little less functionality but a clean view. A senior developer used it.