Spark.com would have been a good fit in the sense of "to spark an idea". Flare.com and Atlas.com are very poor fits. Here are some other ideas:
Start.com
Squad.com
Crowd.com
Brand.com
Squad.com would have been perfect.
"There is no association between the word 'cake' and domains or naming or any related services"
Asked Google Gemini
Prompt: True or False
False.
While "cake" itself isn't a technical term in the domain name world, it can be used for...
Atom.com is an absolutely top tier domain name. Their rationale is "Atom: where everything starts". I'm not entirely convinced about the fit though. In any case, it's a great acquisition and keen to seeing more details.