This is my personal opinion. You are, however, free to chose any framework you like.
Considering the recent ReactJS License controversy, I wouldn't use or recommend using ReactJS if you are serious about your product. There are many alternatives like Preact that provide all the same functionalities and features.
VueJS: This is the right time to use VueJS. It's mature and has a large community and has many associated open source tools. Go ahead learn Vue. :)