Just use React. The frontend SPA frameworks are thankfully converging so there's not a huge advantage to using one over the other. So if you're just getting into the fray, use the most popular one because it has the best support and documentation.
Avoid Angular. It's a massive and complex framework with a vertical learning curve, and relatively poorly documented.
I also highly recommend using Typescript throughout with Tslint on very strict settings using Microsoft's extensions and VsCode as your editor. This will provide the least painful experience for a front end transition that's already going to be....shocking