When choosing or editing a gaming or anime PFP, focus on a strong silhouette...

https://dlf-ne.org/how-do-i-crop-an-anime-pfp-so-the-face-stays-readable-in-a-circle/

When choosing or editing a gaming or anime PFP, focus on a strong silhouette and high contrast so it stays clear even small and round. Crop tightly around the face and keep the background simple to avoid clutter