Thanks. Reading between the lines
I believe this is the policy document in question.
http://www.jimmycarterlibrary.gov/documents/pddirectives/pd13.pdf
It states that NATO nations (and some others including ANZUS nations) were exempted.
Reading between the lines, on first glance, all NATO signatories - including France and Greece - as well as Japan, Israel, Australia, and New Zealand would continue to have access to what the US uses, with the expected restrictions on special weapons, needs of the ally, co-production, etc.
The Allies and neutrals that would have access to a lower tier would include all the Latin American nations (even the Rio Treaty signatories), the European non-NATO allies (including Spain, despite the bilateral agreements), the ROK and ROC and ROP (despite the bilateral agreements), the Western-oriented nations in SW Asia and North Africa, any remaining elements of CENTO and SEATO, and any other power looking for US MDAP support...
So, the F-20 presumably goes forward, and various older US types (F-4, F-5, F-8, A-4, A-7) are presumably available as well, based on airframe availability for rebuilds or whatever new production capacity might still be available in the mid-70a.
Realistically, not s huge change from reality in Carter's first term; the major sales outside the parameters sketched above came under Reagan, so the first really large opportunities for Dassault would come in the 1980s.
You'd have to look at procurements country by country to see what was available at any given time.
Best,