When I got into Pet Sounds in 2018, I still wasn't going through whole discographies, so I pretty much just stuck with these four classic albums. I did eventually check out most, if not all, of their earlier records and found most of them to be unworthy of a true deep dive. However, I'll probably revisit the Beach Boys at some point because I've several positive things about Sunflower.
The Beach Boys Today! (1965): A-*
Pet Sounds (1966): A+*
Wild Honey (1967): B+
The Smile Sessions (2011): A*