If you are a Pathfinder player, you could join the Pathfinder Society games here on MW. They are usually first come, first served for who plays. PM me if you need help with that.
As for prettying up your application, one easy way to do that is to find a pretty application format that you like and quote it so you can see the code behind the layout, then sub in your own character's details. I'd also put a small snippet of in-character writing in your application too... a quote or a small scene so e GM can see your writing style. Make sure your grammar is correct.
I personally don't put too much stock in how pretty an application is though, I'd rather see an active participant in the game ad thread or someone who was interested in finding someone else with whom to make a collaborative back story that fits the theme. From a GM's point of view, the only way to distinguish between applicants is through the quality and abundance of their posts in those pre-game threads. If I see someone just drop an application and never post again, it doesn't look as good as someone who asks pointed questions that relate to how your character might fit into the setting, someone who makes a very setting-appropriate character or someone who tries to work a bit on party back story if it's an open-ended start to the campaign.
The other thing I'd suggest is to look at what applications are already in the game and propose a character that fits a different role. Propose a cleric if there isn't one yet, or something. The other place to mine for upcoming games is in the game planning thread, which often has these kinds of collaborative discussions going on before the game starts. If you join in there, you're in on the ground floor so to speak and start with a leg up compared to the other players.