Fiddlehead is great for a laid back, serve-yourself style brunch. The food is awesome, but be prepared to seat yourself, get your own coffee, water, utensils, etc.
Circa is good for small tables. It’s a very small restaurant, there’s almost always a short wait.
Endolyne Joe’s is good for big groups. I’d expect quite a wait on Easter Sunday, though. I’m not sure if they take reservations.