Where to buy/sell website

Сollection of websites where you can sell/buy websites, online stores, saas services.

https://www.motioninvest.com/
https://flippa.com/
https://empireflippers.com/
https://www.trustiu.com/
https://feinternational.com/
https://www.sideprojectors.com/#/
https://exchangemarketplace.com/