* Someone with a "Peter-like" personality: Think a celebrity known for being crude, uncultured, and maybe a bit of a buffoon. Someone like a comedian like Andrew Dice Clay or a reality TV star like Snooki could find Peter's lack of sophistication endearing.
* A celebrity with a "Peter-like" problem: Maybe a celebrity struggling with weight, a drinking problem, or a bad reputation. Peter, in his own clumsy way, might offer some kind of relatable advice or support, making the celebrity feel seen.
* A celebrity with a surprising taste: A highbrow, sophisticated celebrity like Meryl Streep or Daniel Day-Lewis could, in a completely out-of-character move, be drawn to Peter's simplicity and unexpected charm.
The episode could play on the contrast between the celebrity's glamorous world and Peter's chaotic family life. Imagine the celebrity trying to fit in at the Griffin household or Peter trying to navigate the Hollywood scene. There's potential for tons of comedic situations and awkward moments!
Ultimately, the best celebrity for this scenario would depend on the humor and the specific angle the episode wants to take. It would be fun to see who the writers of Family Guy would choose!