There are many online resources where you can find high-quality palm tree SVG files. Here are a few popular websites to consider:

- **Freepik**: A vast repository of free and premium SVG graphics, including palm trees.
- **Vecteezy**: Offers a variety of free and licensed vector art, perfect for personal and commercial use.
- **Etsy**: A great platform to find unique palm tree SVG designs from independent artists.
- **Creative Market**: Provides premium designs created by talented artists, including tropical-themed SVG files.
- **SVG Repo**: A free resource that offers thousands of SVG files, including various palm tree designs.