Also stop hand registering domains based on your own preferences, I did this and found a big mistake, many have droped without selling even at reg fee.
Look what is in trend and try capture what others may not see for example NFT, metaverse, VR, holo, AR, crypto and DeFi related names, but most are already taken by domainers, with a little of creativeness you can create brands which most businesses prefer to use, also try to look into the future many people don't see it even the so called domain kings, the future is in technology, digital and software development.
You can be inspired by watching such movies as Blade Runner, Mandalorian, LOKI TV Series, Superman and Lois TV series, Flash TV Series, Ready Player One etc, in short Futuristic and Fantastic movies which predict the future in some way.
P.s. never register domains with such words: planet, globe, global, Mars etc, this domains will be nulled most the 2 word ones, the one word ones will be still used as brands but their value will decrease hugely, in short stay away from what NASA and Space-X have to show or say because they film fairy tales.
So my advice from those movies is focus on the tech not space fairy tales.