You want to build an app using SharePoint Framework and wonder which framework you should use? Here's my personal advice.
Tips and best practices for building applications on Microsoft 365 by Waldek Mastykarz - Microsoft 365 Cloud Developer Advocate

What kind of apps can you build on Microsoft 365?
Microsoft 365 is a rich platform for building applications. Here are the types of apps you can build on Microsoft 365.

Securely connect to Microsoft Graph from Teams tabs using SSO
Say you're building a Microsoft Teams tab with Single Sign-On (SSO). In your tab, you want to connect to Microsoft Graph to show some data from Microsoft 365. Here is how to do it securely.
Start building apps for Teams
Microsoft Teams is a rich collaboration platform used by millions of people every day. By building custom apps for Teams you can help them work more effectively and connect them with even more knowledge and insights. Here are some resources to help you get started.
Getting started with SharePoint Framework
Using SharePoint Framework you can extend portals on Microsoft 365 and expose your apps where people work. Here are some resources to get you started.
Create Azure AD apps with one line of code
Need to automate creating Azure AD applications? Look no further. It just got easier with CLI for Microsoft 365.
Convert multiple images to WebP
Quickly convert multiple images to WebP and improve the speed of your website
Bring your app to Microsoft 365 in 3 steps
Bring your app to Microsoft 365 and reach 250 million users in 3 steps.