Kids & Under 18 Stay away!
e621.net
rule34.paheal.net / rule34.xxx
furry.booru.org (it’s like rule34)
kemono.party (GitHub)
vsdfdtkr5mh6y33p.onion (it’s like e621)
Copy > Right Click > Open In A New Tab > That's all!
Warning: Adult content inside these indexes, so under 18 avoid focusing! Lol