Picking pins so they are contiguous:
rpi - nrf
20 - 1 gnd
17 - 2 vcc
18 - 3 ce [rpi GPIO 24]
24 - 4 csn
23 - 5 sck
19 - 6 mosi
21 - 7 miso
22 - 8 irq [rpi GPIO 25]
rpi - nrf
17 - 2 vcc
18 - 3 ce
19 - 6 mosi
20 - 1 gnd
21 - 7 miso
22 - 8 irq
23 - 5 sck
24 - 4 csn
Note this now includes IRQ. See previous revision for RF24 notes.
For Teensy I think it's: