LAN play or other available co-op method (Dying Light 2: Stay Human)

Good afternoon. We want to buy 2 accounts with the game with a friend (2500r per min edition is expensive for us) and play together. But the main problem with accounts is that you can only play offline. So, is it possible to connect through the local network? If not, please tell me other inexpensive ways to co-op (a pirate will do).
Thanks in advance