A big, big plus point of using express is databases. Since it is a minimalistic framework, express doesn’t really lean towards a particular database and hence, you can install either MySQL, MongoDB, Redis or whatever you want. All you need to do is install the driver with npm install and you are good to go!
React is another famous framework, based on “Reactive Programming”. Of course, to master react, you will need to learn a lot of other technologies, such as Redux, MobX, Fluxy, Fluxible, or RefluxJS. React can also be used with jQuery AJAX, fetch API, Superagent, and Axios. React also introduced Suspense to improve the developer’s experience when handling asynchronous data fetching in React apps. In short, the new update to Suspense lets the component wait until a condition is met.
React also introduced objects, like state and props. With the state and props objects, you can simply pass data from a component to the layout or from a parent component to a child component.
React currently is one of the most popular frameworks out there, and it is normally the first choice.
Meteor is downright interesting framework once you really get into it. It has had its fair share of problems, yes, but so have other frameworks! Here is a fun blog I came across that I will recommend everyone to read.