Starting a new Save File

[Filthy Casual]

YES, I know the new update comes out soon, but I really want to get some ideas. I am going to be starting this next game with Mudkip as my starter. What are some good suggestions to compliment Swampert's water/ground typing (including the upcoming gen 7 mons)?

 

(I SWEAR I WON'T MAKE MULTIPLE THREADS ABOUT THIS LIKE LAST PLAYTHROUGH)

[Anime]

i think a cradily would work well with swampert, Hmm a chandelure would cove its grass weakness

[Ocho]

Hmmm... IDK If you have enough patience to do this but, once you get the coin case, You could get a Meowstic. Since it has a wide movepool, plus signal beam for those grass type.
A good firetype? Growlithe. You can find a Fire Stone in Carotos. But i would suggest to train it until it learns Outrage (or evolve it soon if you want Extreme Speed)
I would recommend to get a Venipede and have a spare Heart Scale to teach him Rollout.
Or you can have the Houndour for a Dark-Fire Type. Houndoom is very useful against Tanking Narcissa's Pokes, Angie's and Amber's (Specially if it has Flash Fire)
I wouldn't Recommend to get a Chandelure, yes is too powerful, but you get it mid-late game, so meh...
If you want to cover it fire with fire, or grass with grass, a Good Grass Type would be Tangela, it can tank very easily every Physical Pokemon.
An Ice type would also be good against Grass Types, plus Flying and Dragon. Vanillite.
Now, Flying Type. While swoobat is very good Early Game, it becomes greatly useless onnce you reach Goldenleaf Town. I would pick Swablu for that. Noibat is pretty useless until mid-late game when it finally evolves (which is when you battle Crawli and Angie, so, no)
Or get an ultimate Grass Destroyer with Crobat, but you would have to get TM Flash for it, at the casino. 

Other types like Electric, Fighting, Fairy, etc. are still needed, to get a very wide team and have almost every type covered. 

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Or you can get Imposter Ditto and EV Train it to get full HP. I Call it the Panic Button.
 

Hope this helps you!

[Filthy Casual]

I just beat Marianette, and I may need some more team help. The squad is kicking butt, but that may not be the case soon. Here is who I have:

 

Achilles (male Swampert)

Magnus (male Mightyena)

Cleveland (male Garbodor)

Spoopy (female Dusclops)

Stereo (male Pidgeotto)

Janus (male Girafarig)

 

The only two I am set on keeping are Swampert (being my all time favorite) and Dusclops (it killed 9 level 100 Kecleons by itself). I am also training up a Tangela named Chubbs (I am thinking he will be Stereo's replacement). Any suggestions?