It is surprising that out of thousands of different looking themes only very little amount is focused on retro or vintage looks.
A one that does provide you a full blast from the past is the Back To The 90s Retro WP Theme.
Let's immerse us in that right now.
Do you recall how it was in the 80s? Vibrant colors, discotechs, and dance music. Even if you weren't even born then the retro font Outrunner will reshape your memory!