Follow these steps to ensure you get the best quality without malware:
Do you prefer a (realistic, anime, or minimalist)?
To help you get the exact image you need, could you tell me: What is this for (phone, PC, or print)?
Check Reddit or Wallhaven for high-resolution Genshin Impact Wanderer (Scaramouche) wallpapers.
Use Unsplash or Pexels for atmospheric, real-life photography of travelers.