For the no fee Disney, $200 for $500 I think is the best offer generally speaking. At the moment, it is only available as a public offer for the Disney premier (fee based version) and $100 for $500 was the best public offer when I got mine a couple years ago. Right now the public offer for the no fee disney is a $50 statement credit.So the referral offer has been the only way to get a better bonus on the regular version.
I think if the Freedom is one you are interested in, the Discover It with doublecash back definitely is worth looking into, essentially operating the same way, but the effective 10% in year one has been one of the main reasons people have been signing up. Happy researching! And never anything wrong with a "mild" approach. We've all been there