Check with HIBP breach domains have 2FA available (using pdehaan/2fa-domains which wraps 2factorauth/twofactorauth).
npx pdehaan/blurts-2fa
833 2FA domains
426 breaches
20 breached domains have 2FA
Adobe
Ancestry
Aternos
Bitly
Canva
Dropbox
EpicGames
GateHub
Kickstarter
LeagueOfLegends
LinkedIn
MailRu
MyHeritage
Neteller
NexusMods
OVH
Patreon
Snapchat
Tumblr
VK