First, remember that instead of buying an animals and then give a shit by making it homeless or asking for euthanasie, you should NOT BUY such animal at all!

Too Many Animals, Too Few Good Homes https://perma.cc/5T9J-SMZA

People who don’t have their animal companions spayed or neutered are also to blame for animal homelessness.
Among the 6–8 million animals that enter the rescue shelters every year, nearly 3–4 million (i.e., 50% of the incoming animals) are euthanized, and 10–25% of them are put to death specifically because of shelter overcrowding each year (from Increasing adoption rates at animal shelters: a two-phase approach to predict length of stay and optimal shelter allocation)

Only about 10% of the estimated 70 million homeless dogs and cats in the U.S. are admitted to animal shelters each year https://perma.cc/VEU7-TP79

Why We Euthanize (animals...) https://perma.cc/M2T9-JHH7

Euthanasia: The Compassionate Option https://perma.cc/8JH5-W6VY

Laws Regulating Rescue and Foster Care Programs for Companion Animals https://perma.cc/CDA8-BY3H

The messy morality of letting AI make life-and-death decisions https://perma.cc/CC44-XU8M

Keeping of pets and wild animals https://perma.cc/66G3-M4X5

Euthanasia At PETA’s “Shelter” Still Occurring At Alarming Rate https://perma.cc/EJ6Z-5WJL

Animal Rights Uncompromised: ‘No-Kill’ Shelters https://perma.cc/P97B-YAQE

Animal Euthanasia Statistics https://perma.cc/L5FG-F3G6

Euthanasia Statistics: Belgium https://perma.cc/UDV2-UDCL

Wanting to die at 'five to midnight' - before dementia takes over https://perma.cc/R7FD-UDH2

Study Shows Rise in Visitors to Switzerland Seeking Assisted Suicide https://perma.cc/9Y3E-S92H

Canada isn’t pushing minors to end their lives. Current euthanasia laws don’t apply to them anyway https://perma.cc/PZU9-P9TG
If your only medical condition is a mental illness, you are not eligible for medical assistance in dying until March 17, 2024
Who can die? https://perma.cc/QBD7-MYSR

Dutch Euthanasia https://perma.cc/W2HM-UXZ5