Best to ask in some local forums. E.g. the Zaram XGS-PON SFP+ module is popular among Dutch KPN users. There is also some cooperation between e.g. KPN (Dutch ISP) and Zaram to make it well. Also popular is the Fritz!Box Fiber 5090, which comes with a module (though currently max. 2.5Gbit). For other modules, AFAIK they need to be set up with the right slot ID of the provider, etc. But the locals will know.

If you happen to be in the Netherlands, some of the KPN tech staff hang around on the Tweakers.net forums. They help a lot of users there who want to go down this road.

WAS-110 is the one to go for.

https://pon.wiki/xgs-pon/ont/bfw-solutions/was-110/