Namefruits is a kind of intelligent Naming AI for business names. It is not only about quick name suggestions but creating a perfect and unique brand name or business name. Namefruits works in the background to build up an individual profile for every user and every project that is to be named. If you search a name for a software or app, Namefruits considers not only available domains but also checks app stores for example. If you start your own business, the tool also checks trademarks or business registers and other aspects. I don't know any other similar comprehensive solution.
DAN.COM - DAN is on a mission to make unused domains accessible to all
DomainWheel - Smart startup name generator
dofo.com - Domain search platform Dofo.com gathers all registered (350 million) domains of the world in a single place. Dofo also brings together all the domain names that are on sale, provides useful features, all completely free.
NameQL - Fast and friendly way to find a usable name for your idea, app or business
BrandBucket - The original marketplace for business names and creative domain names.
Namelix - AI business name generator