“I really want to know what schools I will get into in the spring, but also want to have a “very high chance” of getting into a top school.”
I don’t think anyone has a “very high chance” of getting into Yale, UPenn, or Duke. SCEA/ED might help “hooked” applicants some but likely gives little if any advantage to the “unhooked”.
With that said, in 2018 Yale SCEA rate is 13.9% (794 accepted), Duke ED was 18% (860 accepted) and UPenn SCEA is 18.5% (1,312).
IMO, UPenn would be your best chance for early action in both acceptance rate and pure numbers of accepted 1,312 vs. 794 Yale or 518 more acceptances.
The other option is roll the dice at your top choice college, Yale. You only get one shot at an undergrad education, make the most of your opportunity.