Welcome AE! Glad to have you as a member!
When it comes to Glenn's Hotel California live look, the constants were jeans, low-heeled boots with the jeans over them (don't tuck the jeans into the boots), and a gold medallion (you need to get the "Don" and "Randy" guys to sport those medallions, too - it was an "original Eagles" thing). When it came to the tops, you get three main staples:
1. T-shirts with funny slogans / images
2. Sports jerseys
3. Loose white tops that revealed a lot of chest
Here's the sunglasses Brooke mentioned:
He usually wore those for "James Dean," then, as Brooke said, he used them as a headband for the rest of the show (see below. Also, below you can see him in another sports jersey - he showed love to lots of teams, but his favorite was the LA Kings hockey team jersey you see here):