Aggron-This set is very good, but i would use Iron Head over Heavy Slam. Although, Aggron DOES weigh a lot, so Heavy Slam could still work for you.
Klefki-Give Klefki a Light Clay, since Klefki is bulky enough to take a hit. Also, replace Dazzling Gleam for Foul Play, or Thunder Wave. I highly would recommend Foul Play though.
Togekiss-I don't see you using a Para-Flinch set, so im assuming this is playing as a supporter. I honestly think using a Sylveon would be a better choice. It's bulky and strong. Here is a pretty good set;
Sylveon@Leftovers/Lum Berry
Pixilate
EVS-252 HP 252 Sp. Defense 4 Sp. Attack
Calm
-Hyper Voice
-Calm Mind/Toxic
-Wish
-Heal Bell
Your team isn't fragile, but you can still use Sylveon to serve as a team-cleric. Also, most of your Pokemon can't heal itself, so having a cleric helps out ALOT.
If you still insist on using your Togekiss, use Para-flinch.
Togekiss@Leftovers
Serene Grace
EVS-252 Sp. Attack 252 Sp. Defense 4 HP
Modest/Calm
-Thunder Wave
-Roost/Nasty Plot
-Air Slash
-Flamethrower/Aura Sphere
This is usually what a Para-flinch Togekiss looks like. Obviously you need the Paralyze status on the opponent. You can use Roost to heal yourself, or use Nasty Plot to hit hard. Also, Air Slash is obviously needed, too. Flamethrower is for Aegislash check, while Aura Sphere is to cover most of your weaknesses.
Goodra-I actually run mine like this:
Goodra@Assault Vest
Gooey
EVS-252 HP 252 Sp. Attack 4 Sp. Defense
-Draco Meteor/Dragon Pulse
-Fire Blast
-Sludge Wave
-Thunderbolt
This Goodra set offers great type coverage.
Tyranitar-I don't believe in Sp. Attacking Tyranitar. Also, your team isn't very fast. So lets use a fast Special Sweeper.
Gengar@Focus Sash/Life Orb
Levitate
EVS-252 Sp. Attack 252 Speed 4 Sp. Defense
Timid
-Shadow Ball
-Sludge Bomb
-Thunderbolt/Substitute
-Focus Blast/Disable
This set is used to offer coverage, unless you are using the very-known Sub-Diasable set. Honestly, there are LOTS of Gengar sets out there, so you can use a different set from mine.
Malamar-Your Malamar is fine, but how about some changes?
Malamar@Leftovers
Contrary
EVS-252 Attack 128 HP 128 Sp. Defense
Adamant
-Topsy-Turvy
-Night Slash
-Psycho Cut
-Superpower
This is a very known Malamar set. Most people would suggest using 128 Defense>Sp. Defense, but use 128 Sp. Defense since Superpower will INCREASE the Defense of Malamar, as long as if Contrary is the ability.
Overall, this is a pretty good team. I like it. Anyways, good luck in competitive battling, and have fun!