Creating unique usernames and bios

Could someone push me in the right direction to create unique Twitter usernames and bios? I have ~1k accounts and I'm converting them to nft niche. I've tried searching all over for a way to do this and found someone who could do it for me, but their pricing was insane or they just didn't understand what I was asking for. Any help in the right direction is greatly appreciated

Do it with spintax