Need two more pokemon for my platinum team

[aspie3000]

Even though I dislike sinnoh I've decided to give platinum a try and I have 4 pokemon on my team
Prinplup lv 16
Monferno lv 16
Grotle lv 18
Chatot lv 16

I need two more pokemon for my team, any suggestions?

 

[Pika-power]

Try Gible. It can learn awesome moves as a Garchomp, and is a great physical and special attacker.
Also, chuck out chatot. Starly/Staravia/Staraptor has much better attack and speed.
Jolteon Maybe? It has good speed and decent attack, so it's really well rounded.

Hope I helped!