Haven’t seen Citadel yet but I quite liked Ghosted, but then I am huge Chris Evans fan 
I actually ended up cancelling* my AppleTV sub as this year it’s been pretty rubbish! The new Ted Lasso series is good, but everything else seems a little boring, or at least not as good as their original stuff.
I’d probably use this as rating for Apple TV stuff:
1 - rubbish
2 - seems boring
3 - ok
4 - pretty good
5 - brilliant
Recents:
Silo - 2/3 - kinda boring but still watching it
The last thing he told me - 2 - was boring and glad only 7 episodes
Extrapolations - 2 - boring, lost interest after 2 episodes, might watch it as a filler
Liaison - 1 - didn’t really give it a chance but seems very boring
High Desert - 3 -seems ‘ok’
City on Fire - 4 - probably the most interesting new one this year
I’d give 4 to to:
Shrinking
The big door prize
Hello Tomorrow
The ones I’d give 5 to:
Ted Lasso
Bad Sisters
Black Bird
Slow Horses
Invasion
Foundation
Probably a load I haven’t seen!
*I got a 6 months trial with my new mobile contract so got it for another six months : )