There’s also !scifi@ttrpg.network which should have some overlap with cyberpunk.

I settled on Campaign Cartographer 3+.

It has a steep learning curve, but seems to be the most powerful tool by far.

I’d go for ███ ████ or ██-█.

The easiest Traveller version is definitely the one from Mongoose.

Also, you should check out Seth Skorkowsky’s overview videos:

https://youtube.com/playlist?list=PL25p5gPY6qKVUg6ys5N1oRlsBI7DTByyI