If you need a copy of , you must obtain it legally through macOS or iOS (it comes pre-installed) or via Apple's software licenses. I cannot provide direct download links to copyrighted proprietary fonts.
Hiragino Sans TC Free is a free, downloadable version of the popular Hiragino Sans TC font. Developed by the Japanese type foundry, Morisawa, Hiragino Sans TC is a sans-serif font designed specifically for digital media. The "TC" in its name stands for "TrueType Collection," indicating that it's a collection of font files that can be used on both Mac and PC platforms.
Created by Google and Adobe, Noto Sans TC is the gold standard for free Traditional Chinese fonts. It is a "Pan-CJK" font, meaning it’s designed to look consistent across Chinese, Japanese, and Korean.