Since you are looking for .rar or .zip archives, these trusted platforms often bundle multiple brushes into single downloadable files:
One of the largest repositories specifically for Photoshop brushes, grouped by style and popularity. Download Photoshop brush pack rar
The official marketplace for free and premium assets directly from Adobe. Since you are looking for
Great for high-quality, professional-grade packs often shared by designers as part of their portfolio projects. How to Install Your New Brushes Download Photoshop brush pack rar
Once you have downloaded your .rar or .zip file, follow these steps to get them into Photoshop: