I encourage everyone to listen to his 1988 solo album self named “Brian Wilson”. It’s brilliant. Frequently called “Pet Sounds ‘88” since many fans consider it to be a spiritual sequel. The 80s synth dressing might seem off putting at first but the songwriting and musicality of it is just amazing.
Also, give a listen to Smile! - not Smiley Smile, or The Smile Sessions, but the 2004 recreation. It's quite mindblowing. If you close your eyes you can hear it as a true symphony.