You can slice a large wordlist by size:
If your network falls to a 13GB wordlist, it’s time to upgrade to a longer, truly random passphrase or move toward WPA3 enterprise security. wpa psk wordlist 3 final 13 gb20 top
The "20 Top" designation likely refers to combining the or the top 20 billion passwords from breached databases, then filtering for the most frequent. You can slice a large wordlist by size: