Grand Canyon 6 vs 7 vs 8

I'm in search of a beginner bike for enjoying some fun rides with my kids, both in the forest and on the road near our neighborhood. I recently saw that the new lineup of Grand Canyon bikes has been released, and I would appreciate your guidance on which model would be the best fit for me.
I am 33 years old, 183 cm tall, and weigh 90 kg. Any advice would be greatly appreciated!

GC 8:

https://www.canyon.com/en-gb/mountain-bikes/trail-bikes/grand-canyon/grand-canyon/grand-canyon-8/4161.html?dwvar_4161_pv_rahmenfarbe=M196_P12

GC7:

https://www.canyon.com/en-gb/mountain-bikes/trail-bikes/grand-canyon/grand-canyon/grand-canyon-7/4160.html?dwvar_4160_pv_rahmenfarbe=M196_P12

GC6:

https://www.canyon.com/en-gb/mountain-bikes/trail-bikes/grand-canyon/grand-canyon/grand-canyon-6/4159.html?dwvar_4159_pv_rahmenfarbe=M196_P10

Or Specialized rockhopper Expert:

https://www.specialized.com/de/de/rockhopper-expert/p/4279941?color=5448788-4279941