Good candidates for your garden will depend heavily on where you live. In my zone 6b no-pesticide garden in Pennsylvania, after two growing seasons, my best performer has been disease-free and fragrant Savannah, which performed very well all season.
Photos and information about Savannah are here:
Rose (Rosa 'Savannah')
Savannah won awards in the 2015 Biltmore Trials, as you can read here:
http://www.biltmore.com/blog/a...
Savannah scored very well (94 out of 100) in Peter Kukielski's excellent book, "Roses without chemicals" which I would enthusiastically recommend to you for additional roses you might want to consider. You can read a preview of this book here:
https://books.google.com/books...
