For a small portfolio a single home page with all of your articles on may be sufficient, but it is common to want to showcase work in 'Collections' of articles. Common collections are by type, use case or publication.
You can then assign articles to each block with the two options below:
Manually assigning articles to blocks
The default of way of adding and removing articles from a block.
Automatically assigning articles to blocks
How to use rules to automatically assign articles to blocks, great for if you have a large number of articles to display.