The AMP-Research project collects information about amplification vectors in protocols including reproduction possibilities. For each vector, the port and protocol are listed, as well as, the amplification factor. A scanning script or payload for scanning with zmap is included too.
Cloudflare Radar is Cloudflare's reporting website about internet trends and general traffic statistics. The website shows information about observed attacks and attack types and links to the DDoS report. General traffic statistics are reported, such as the used browser, fraction of human traffic, IP, HTTP, and TLS version.
The website also provides more detailed information on domains and IP addresses. Domains have information about age, popularity, and visitors. IP addresses have ASN and geolocation information.
More information about Cloudflare Radar is available in the introduction blog post.
The Radar data is also available via API, for example the attack data: https://developers.cloudflare.com/api/operations/radar_get_AttacksLayer3Summary