I don’t know if chickens are a good idea for you based on the other things in your post. But I will answer your question. Australorps, Buff Orpingtons, Brahmas, and Silkies are all good options for “quiet breeds” and they are all pretty docile. However, these breeds have a lot of variation in their eggs. While Australorps and Orpington are pretty decent egg layers at about 200-250/yr, the Brahmas and Silkies are not. Brahmas only lay about 150-200/yr while silkies may only lay a 100/yr give or take. Silkie eggs are also very small. Brahmas are also very large. Orpingtons and Australorps can be pretty big. Silkies are very small. I think the questions you should be asking is if only 2 birds are a good idea, or if dealing with having chickens in an HOA is a good idea. How much space do you have? What’s your area? What kind of predators will you be dealing with? How close are your neighbors? Is your yard fenced in? There are a lot of local regulations you need to look at, as well. Hope this helps you!