Looking for a compact case for Matx/atx & Custom loop

[CatCloud]

Havent been paying attention at cases these past years so im not sure whats new, good or shit.

Rocking a TT Core X9 now and its ...a tad to big  but at least two 420 (3x140) rad fits in it and its modular.
So what im looking for is a case with a horizontal Motherboard layout or a vertical but with the I/O poking out from the top instead of the back.

• I want it to be as compact as possible but still have room for at LEAST 1 420 (3x140) radiator.
• If possible i also want it to be flexible/modular in a way. 
• limited HDD space, i dont want one of those 8+ HDD cages that i will never fill up, max 4 is fine. 
• windows doesnt matter
• dust filters
• Somewhat easy to work with inside.
• fan controller is a bonus but not a must
• im ok with a case that is tall, in fact that would be great
• Matx or ATX at max.
• Custom loop friendly to some extent.
• No price limit, so go for it.
   

For example, the TT Tower 900 was interesting but its too big, too much dead space in it.