Gigabytes of free samples and loops in Wave, AIFF formats.

[Viollette]

List of sites that offer free samples packs and loops in different formats:

https://www.lucidsamples.com/14-free-sample-packs - 8 high-quality samples packs (Royalty-free)
https://soundpacks.com/category/free-sound-packs/ - tons of free samples packs
https://trisamples.com/free-sample-packs/ - good quality samples packs

Enjoy!