Hello myself,
From our end there is not an official list for CPU sockets, what you can do is according to the CPU family filter it in http://ark.intel.com/ ARK | Your Source for Intel® Product Information to find out the type of socket. I also found this helpful information https://en.wikipedia.org/wiki/CPU_socket# List_of_80x86_sockets_and_slots CPU socket - Wikipedia, the free encyclopedia.
Now, with (PCIe) lanes list will depend on each motherboard manufacturer, they will decide how many slots they will built and each motherboard and since Intel has stopped producing motherboards there is no official list from our site.
Regards,
Amy.
