ReactJS is possibly the greatest to happen to the DOM in many years & Bootstrap is possibly the best front-end framework on the web.
There is React Bootstrap but it doesn't have the greatest part of Bootstrap - the grid.
Personally, I see Bootstraps' grid as the best grid out there. It is so diverse and allows a lot of different possibilities to the same layout at different breakpoints.
Well we are already using ReactJS to write our HTML, so why not make the HTML we write look more specific to the component we want?
<Container /> is a container.
<Row /> is a row.
<Column /> is a column.
Take the copy the build file into your project.
Use the elements how you would imagine - read docs below for more help!