Need recommendation for SFP module for 1&1 FTTH in Germany

Hi,

I just ordered a 1GB FTTH line with 1&1 in Germany. I’m trying to figure out which SFP module to order to be able to set up everything correctly.

From what I understood, the Zyxel module (PMG3000-D20B) that works with Telekom might be an option.

Do you have any other recommendation or experience?

Best,

foobar