You asked

Is the canon eos 6d good for beginners?

I think the 6D is a good choice for a beginner who wants full frame on a budget. It's an older DSLR, announced in 2012, and one of the cheapest ways into full frame on the used market. It has no stabilisation in the body, so pair it with stabilised lenses for slow shutter speeds.

For an everyday kit, I'd look at:

Every current camera from a major brand is good, so don't overthink it. If you want to save money, buy used. See buying used.

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