This AA is full of them:
https://politicsandwar.com/alliance/id=4478 Billy Alliance
For example:
https://politicsandwar.com/nation/unique/id=99398 Billy Hill
Leader Name
Nation Name
Alliance
Date Created
Last Login
Score
Billy Hill
Billy Hill Empire
Billy Alliance
01/22/2018
02/07/2018
259.25
MrPotatas
Swedish Village
Billy Alliance
02/02/2018
02/07/2018
153.3
kidddd
wikihowlands
None
02/06/2018
02/05/2018
0.25
Horseman
wikipedia
Billy Alliance
02/06/2018
02/06/2018
63.78
calf
the German communists
None
02/06/2018
02/06/2018
0.25
There is also an Arrgh player linked to a multi in this AA:
https://politicsandwar.com/nation/id=99431 NosKowea (Arrgh)
Kim Jong Ill
NosKowea
Arrgh
01/12/2018
02/06/2018
356.26
1111
1111
None
01/23/2018
01/30/2018
120.18
...if you go to nation 1111 above, it's in the Billy Alliance above and has multi accounts. More importantly, if you read the notes in his bank transactions, you can see he's transferring monery with NosKorea (Arrgh person above).
Clear as mud, I know...