Are there any sites that verify and set up PPPoE servers and clients between SRXs?
Im not sure if I understood the question correctly but if you are looking for confguraiton exmaples please see:
https://kb.juniper.net/InfoCenter/index?page=content&id=KB15736&actp=METADATA (Juniper Oficial)
Hope it helps you. Please mark as Solution if applicable
PPPoE Server & Client verification is common on Cisco devices, but not SRX.
This one is very nice!
Yamada, Im glad it helped you!