Agree, if your personal site is basic looking but links to a cool react library you made that would be more impressive to me than a fancy portfolio. If you wan

Agree, if your personal site is basic looking but links to a cool react library you made that would be more impressive to me than a fancy portfolio. If you want to learn React then nothing you do is a bad idea because it is all going to teach you something. If you want to look impressive spend your time building something impressive that you think is cool. Even something overdone like a Select component or a Table component if it works well will demonstrate way more competence.