I have quite a few dragons I no longer want, so every single dragon in the hatchery tab is OTA, just send any trade (probably not other dragons) and I'll probably accept :)
https://www1.flightrising.com/lair/467200/1533860?name=&type=undefined
https://www1.flightrising.com/lair/467200/1533860?name=&type=undefined