You can see that there is no 'fascist manifesto" in the same way there is a communist manifesto. Facism is not an appeal to the head, so there is no need for bean counters, and as a result, the right is less fractious than the left.
Probably accurate to say fascism is revolutionary nationalism to an equivalent extent communism is revolutionary socialism.
How that revolution arises probably accounts for the various attempts to define fascism as rather a slippery bar of soap.
On the left we find it relatively easy to distinguish marx-Leninism, Maoism, Trotskyite etc., yet even these distinctions are not perfect.
On the right, similarly, the various fascist/national socialist states differ in tone, which is not to negate their fascism as revolutionary nationalism.