I only know brokenhighways' J2 Real Housewives AU.

Rejecting Reality In Favor of Substitution. (http://brokenhighways.livejournal.com/21086.html)
Summary: Jensen’s a washed up actor attempting to put himself back on the map, while Jared’s a former student in debt who owes money to just about...everybody

Reality Is Merely an Illusion (Albeit A Very Persistent One) (http://brokenhighways.livejournal.com/21391.html)
Summary: Jensen Ackles really needs to start reading his own contracts. That's the conclusion he comes to when his agent, Chad, lets him know that Bravo is going to show up at his house in two weeks to start filming the second season of his Real Housewives (and Househusbands) reality show.

Fiction Reveals Truth That Reality Obscures (http://brokenhighways.livejournal.com/22668.html)
Summary: The problem with being a reality star is that Jensen actually goes through most of the year living his real life

<3

I keep trying to finish the fourth part of this but I've given up. For now :)

What? Noooo!!!! *clings to your feet* I need part four!

Hehe. I will see what I can do :)

Good luck with the writing... it cann be so so very hard....

Thank you, bb!

Oh my gosh, I just started reading this today and it's so cute! Thank you for writing it!

Thank you for reading! :)

Thank you!
I really hope you get the last part!
Thank you!

dragonspell's got a J2 bachelor AU - http://dragonspell.livejournal.com/135247.html

And Dial It In by kelleigh is a good one. http://archiveofourown.org/works/205638

In It For Love is one of my favorites <3

'I believe my husband is in this room'

Thank you so much! Sounds awesome!

Love your nick (not related)

The Symbol Of A Song http://hopefulwriter27.livejournal.com/34540.html (Gen/Het)
Summary: Sam convinces Dean to try out for American Idol. Together they go on a journey to accomplish dreams, rediscover hopes, and show the world the strength of their relationship

Aw, cute! Sound like a fun fic! Thank you thank you!

I know two Dean/Castiel ones that are based on The Bachelor:

The Reluctant Contestant (https://m.fanfiction.net/s/7853540/1/)
Summary: AU When Gabriel is hired as a new host for a dating show, Cas has no choice but to follow his brother along as part of the camera crew. Forced at the last minute to be a contestant, he is shocked when Dean Winchester continually refuses to eliminate him.

The Bachelor (http://archiveofourown.org/works/872270/chapters/1675711)
Summary: Dean is the prince regent of the tiny principality of Lichtenstein. He reluctantly agrees to appear in an international version of The Bachelor. Castiel unknowingly finds himself as the first male contestant in the show's history.

And, not really a competition based reality show, but this one is kinda like the old reality show Queer Eye. It's also a Destiel au:

Boys Helping Boys (http://archiveofourown.org/works/321305?view_adult=true&view_full_work=true)
Summary: Castiel is a gay host of a makeover show called Boys Helping Boys, and Dean is the unkept straight guy getting made over for his brother Sam's wedding.

I'm pretty sure I have more bookmarked like this and I'll try to find them for you. Sorry they aren't same/dean.

Edited 2015-01-04 06:50 am (UTC)

Aw, thank you so much! These sound funny and fun!

Keep Digging; Maybe We'll Find Some Talent http://longsufferingly.livejournal.com/121148.html
Summary: In 2005, instead of getting cast on Supernatural, Jared and Jensen get cast on Jeffrey Dean Morgan's new show, Whose Line Is It Anyway. BFFery and innuendo ensues

If You Need Love With No Condition http://think4paperinkw.livejournal.com/24280.html
Summary: Jared never thought he'd be in Hell's Kitchen, but as he goes through the challenges, he also never thought he'd fall for someone like Jensen. However, he has a game to win, and he has to put his feelings on the back-burner. He just hopes he can actually do it.

The Food Network 'Verse http://azure-k-mello.livejournal.com/tag/the%20food%20network%20presents...#item226084
Summery: Jared’s a Food Network Star. Jensen is a closed off man who doesn’t want to know
(In this verse, 'The Food Network Presents' & 'The Food Network Presents a Better Life' have the boys on reality TV, the rest of the verse is them living their lives)

Thank you so much! These are wonderful!

Hi here's some that haven't been mentioned

Project runway ( I love every story on this site!)
http://epicallytired.livejournal.com/185804.html

a complicated love and affection between two men
http://certainentropy.livejournal.com/29655.html

the house angel
http://archiveofourown.org/works/1035559/chapters/2064792

star struck
http://archiveofourown.org/works/5903

miss(ter) congeniality
http://archiveofourown.org/works/112948/chapters/157206

kisses sweeter than wine
http://archiveofourown.org/works/110166/chapters/152514

cooking with gas ( third story still being written but it's really really good!)
http://archiveofourown.org/works/776280/chapters/1460497

Americas next top chef (really long)
http://archiveofourown.org/works/1074258/chapters/2156881

Aw, thank you so so much! Sorry it took me to long to reply!
These are awesome!!!!

You're welcome! I found another one since then

Love in the wild

http://archiveofourown.org/works/2677031/chapters/5986952

Happy reading :-)