First things first thanks
@Robson Mambrini for sharing these stadiums with everyone.
Sometime ago I did Austin FC from zero. I think either Douglas or panin converted it.
Now back to the others.
Audi Field - I got Audi Field made for PES2021 from another user who paid for it. Gonzaga converted Audi Field for FIFA14.
Lower.com Field - edited
@label_5 work, done, needs conversion to FIFA16
Geodis Park - created from zero, done, needs conversion to FIFA16
CITYPARK - my current project, when it is done, needs conversion to FIFA16
I also refurbished Colorado, Dallas, Houston, Montreal, NYC (from MLB2K12) and Sporting KC models.
Gonzaga also converted Houston Dynamo's stadium to FIFA14. Check that one.
that's about it I guess