yugioh deck help with Knights cards?

Because the Knights aren't very strong in ATK, I would have protection for them to keep them on the field in order to fusion summon Arcana Knight Joker. Also, you should run them in 2's if you REALLY want to see Arcana Knight Joker on the field. Getting the cards in your hand would be the way to go, so I would also run Sangan and Freed the Matchless General. A deck list like this may get you stared:

Monsters:

3x Crystal Seer (Draw power/protection)

3x Marauding Captain

2x Jack's Knight

2x Queen's Knight

2x King's Knight

2x Turret Warrior

2x Freed the Matchless General

1x Drill Synchron

1x Turbo Synchron

1x Junk Synchron

1x Sangan

Spells:

3x Polymerization

2x Smashing Ground or Fissure

2x Pot of Avarice

2x Book of Moon or Future Fusion

2x Foolish Burial

1x My Body as a Shield

1x Reinforcement of the Army

1x Warrior Returning Alive

Traps:

1x Mirror Force

1x Magic Cylinder

1x Solemn Judgment

2x Sakuretsu Armor

3x Bottomless Trap Hole

It's a lot going on here. I didn't want to tell you what to do, just give you some ideas. First off, the traps and spells speak for themselves. You must have polymerization to make this work. The other traps and spells are just your preference but mostly what is usable these days. Secondly,the Synchrons can be a good back up for you just in case. Turret Warrior is here for the same purpose. Crystal Seer gets you cards you need when you need them and gives you a defense card until you can make a play.

Well since the Knights are LIGHT attribute based monsters, you can run Honest with them. Yeah, just make the deck around Light warriors like E-hero Alias, Cyber Dragon, Stratos, and other warrior friendly cards. Maybe even some synch support from Jutte Fighter.

If you want to get Arcana Knight Joker out quick, run a couple copies of Future Fusion. While LIGHT warriors is a good strategy, having Future Fusion is a strong idea, as well as most other Fusion tech. You might want to run some Fusion material replacements as well..