I'm looking for a brick like this:
Or similar with the name of the minifigures from the saga star wars, i want it for my minifigures collection. Exist some like this or an unofficial option?
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Sign up to join this communityThat part is Tile 4x4 with studs on edge. It's available in many colours but there are only a small number of printed variants. Rebrickable shows 27 printed variants, 12 of which are Star Wars prints like the one in your question.
I'm not aware of any third-part labels or stickers but you could probably print your own if you're handy with Photoshop or the like. The black unprinted version of that part is very cheap on Bricklink.