This post covers some resources for those trying to break into the tech industry.
I've listed out sites I'd recommend for ramping up on JavaScript & React in a separate post.
https://francescoronel.com/2022/10/06/learning-resources-for-the-javascript-react-newbie/
I recommend taking what you're passionate about and using your skills to contribute to that.
For example, I really like training my dogs, so as a project for my portfolio, I could use Next.js to create a PWA that shows tricks I can teach my dogs to help reach AKC certification.
A great initial project is to create a personal website.
For more project ideas, check out GitHub.
More tools I would recommend are under "What I Use".
https://francescoronel.com/what-i-use/