Here's a simple way to generate a good password that's easy to remember.
curl 'https://raw.githubusercontent.com/trezor/python-mnemonic/master/mnemonic/wordlist/english.txt' \
| shuf | head -n 4 | tr '\n' ' '
The password will consist of four random words. The words are pulled from a dictionary with 2048 = 211 entries, so the password's has 44 bits of entropy.