O11 XL, very, very popular.
The easiest case to work with.
Paired with good fans won't fall behind compared to so-called airflow cases.
But... need to buy your own fans. Bad for the extra cost, good because you won't pay for some so-so fan and them end up buying your own fans.
Quality of the case is very good.
Can accommodate 3 rads without much trouble (used 3 x 360x45 Alphacool XT, now distro + EK XE 360 and EK PE 360).
If I can complain about something is the power bottom, either blue or blinking red.
Owned a black one, now using the white one. For some reason the white feels more premium, but that's personal.
The Lancool II is much cheaper, but a very stronger performer. The only issue I could expect is rad compatibility, even for AIO.
Dark Base pro 900 is a beast of a case.
As someone who owned a Phanteks Primo, with 2 x 480mm rads, 1 x 240mm rad and even a dual pump bay reservoir, I don't see the need for such huge cases, unless space isn't an issue.
Personal choice, O11 XL. Unless going with AIO or custom loop, avoid O11 (regular size) and O11 Air. The clearance for big tower coolers is limited.
Corsair 4000D/5000D (Airflow, not the oven

) is getting very positive reviews. Maybe a left field option?