If you’re searching for a replacement screen for an iPhone 8, you have a few options:

1. **Apple Store or Authorized Service Provider**: The safest option for genuine parts is to purchase directly from Apple or an authorized service provider. They may offer original iPhone 8 screens, but they tend to be more expensive.

2. **Third-party Retailers**: Many third-party retailers sell iPhone 8 screens. Be cautious when choosing these, as quality can vary widely. Look for reputable sellers with good reviews to ensure you’re getting a reliable product.

3. **Online Marketplaces**: Websites like eBay, Amazon, and AliExpress also offer iPhone 8 screens. Again, be sure to read reviews and check the seller’s reputation before making a purchase.

4. **Local Repair Shops**: Some local repair shops may also sell replacement screens for the iPhone 8. They may offer a more personalized service and may be able to provide guidance on installation.

Regardless of where you purchase the screen, make sure it comes with a warranty and that you follow proper installation procedures. If you’re not comfortable replacing the screen yourself, it’s best to have it done by a professional technician.