Hi! JenJen/Jen/Jenerator/J-Rock I'm Griff! I have 4 characters for you.
The first is Louis Parker Weasley, Teddy's brother-in-law. He is more or less the wizard version of a crypto-zoologist and also has a radio show. He's a bit... enthusiastic and adores his sister beyond all belief. Naturally, Teddy must have passed the rigorous "DO YOU RATE?!?!?!" test, so I see a good relationship there.
Next is this girl, Araceli Corner. Her father was an auror and she is in her second year of training for it. I don't know how well she would know Teddy, but I'm down for plotting.
Carrie Anne Page is a year younger than Teddy and an Unspeakable. She is a bit of a silent type. She's proud abrasive and currently unsure about what she believes. They might have known each other from school.
Finally is Theodore Wood. He used to be a huge flirt and used to work at the Quality Quidditch Supplies but is now a Kestral. Again, not sure how they know each other but through family relations and his love interest, he has attended a few parties that Dominique held.
You can reach me at c3h5n03 if you have any ideas =D