Note: There are many many many resources out there (as you probably know which is why you’re so overwhelmed). I have added multiple options because people have various ways of consuming and different tastes. Don’t try to cram it all up. Skim through everything but pick what you like best.
https://www.bestfolios.com/portfolios
https://www.uxlibrary.org/beginners-ux-design-kit
https://essays.uxdesign.cc/case-study-factory/
https://medium.com/designatmeta/5-ways-to-improve-your-design-portfolio-today-eb63e17560dc
https://hackernoon.com/8-ux-mistakes-to-avoid-on-your-ux-portfolio-website-4d6dd437cf21
https://www.interaction-design.org/literature/article/the-10-most-inspirational-ux-design-portfolio-examples
https://uxplanet.org/16-ui-design-tips-ba2e7524d203
https://www.figma.com/blog/product-design-portfolio-tips-from-a-figma-recruiter/
https://x.com/joulee/status/1117832445196247040
https://uxdesign.cc/100-example-ux-problems-f90e7f61dd9f
https://www.dailyui.co/
https://productdesigninterview.com/weekly-ux-product-design-exercise