Here are some VTuber name suggestions based on the provided data:

Combining elements for a strong brand:

• Guitar-focused: AxeRio24, RitmoGuitarra, BrazilianShredder, RockinRio, SixStringsSampa, PepsiAxe

• Dog-focused: YorkieRio, TucaGuitar, GuitYork, SampaPup, RioPup

• Music-focused (Band names inspired): NirvanaRio, FloydRio, BeatlesBoyBR, SabbathSampa, GunsNRosesBR, QueenRio, MayhemGuitar, GorillazSampa

• Location/Age-focused: Rio24, Sampa24, Brazilian24, SPGuitarist

• Cool & Edgy: ShadowRio, NightingaleSampa, PhantomGuitar, MidnightAxe, RebelRio

More playful and approachable names:

• Combining elements: PepsiPup, YorkieRock, RioRhythm, SampaStrums, GuitarYorkie

Names incorporating Portuguese (Brazilian):

• (Requires more information on preferred name style - needs to be checked for existing names): Ritmo Brasileiro, Guitarra Paulista, CachorroGuitarra (DogGuitar), PepsiDoBrasil

Tips for choosing the best name:

• Check for availability: Make sure the name isn't already in use on relevant platforms (YouTube, Twitch, etc.).
• Keep it concise and memorable: Shorter names are easier to remember and brand.
• Consider your target audience: The name should resonate with your viewers.
• Test it out: Get feedback from friends or potential viewers before settling on a name.

Remember to check for trademark conflicts before settling on a final name. This list provides a starting point; you can mix and match elements or use them as inspiration to create something unique.