If you want quick solutions, look up other people’s .zshrc. Github is full of them, just search for “dotfiles”. Of course, many will contain rubbish…
Also, dig through the source code of oh-my-zsh, there is a bunch of nice things in there – stealing code fragments from it is the only thing this bloated monstrosity is good for, in my opinion.
Also, look on the forum, there are some useful tips for Zsh, like this one: