How to do plurals?


I've seen there are two ways of saying **we** and pluralizing words using:

> ら、たち

But I can't see the difference and I'm not sure if it can be used with all the
pronouns. Are there other forms of pluralizing words other than these. How
should I use them and what's the difference.

Are all these forms right?:

> 僕たち・僕ら
>
> 俺たち・俺ら
>
> 私たち・私ら？
>
> 君たち・君ら
>
> あなたたち・あなたら
>
> 彼たち・彼ら
>
> 彼女たち・彼女ら
>
> 犬たち
>
> Etc.

What's the difference of using hiragana or kanji?

