When can I get the Larvitar line the fastest?

I started insurgence the other day (traditional story, Eevee) and I wanted to use Tyranitar on my team, mostly because the armoured form looks cool and seems like a good member of my team. when is the Earliest time I can get the Larvitar line? (Please don’t spoil anything)

Aside from trading for one, u can get a pupitar in selene city ( where the sixth gym is) and breed it

Thanks! I’ll use the pupitar then.

U are welcome :)))

Do u know which 2 pokemon u have to breed to get a larvitar because I dont want a pupitar since its a part of my plan.

get the pupitar, then breed it with a ditto

Or breed it with another pupitar

Thanks for the help