TWRP for PRA-LX1 emui 8 huawei p8 lite 2017?

Where can I get a twrp for the PRA-LX1 (huawei p8 lite 2017) that is compatible with android or emui 8? I already found 5 pra-lx1 recoverys, but all came:

target reported max download size of 471859200 bytes

sending 'recovery' (24954 KB) …

OK [0.632s]

writing 'recovery' …

FAILED (remote: partition length get error)

finished. Total time: 0.642s

This is supposed to be android 8, I found an andoird 8 compatible recovery_romdisk, what exactly is it and is it like a recovery?

Yes, it is. Through twrp you have another recovery, with which you can install zipped files.