Can't go wrong with the big silver/grey Arri cases. A pain to drag around on the subway though. It's a bit expensive for a case, but they are easy enough to find used.
Might also want to invest in a rock n roller multicart. Again tough on the subway unless your stations have an elevator (that actually works).
The Tenba's are nice but expensive. I got one second hand that I use for 4 heads. If you want to use the case for stands, double check the length. I had to send one back because the beefys needed 46"