Codelia by Yoshi Omagari is hands down my favorite monospace font. I use it in all my editors and made a nerd font version for my terminal. I found Codelia because I came across Comic Code. I was looking for something different, and less boring. I was real close to buying Comic Code when I saw Codelia. I love that Codelia has some of the roundness and softness of Comic Code, but still looks "professional." It has character, and that character actually helps me read my code.
If I could afford a license to use on my website, I would. Instead, I use Comic Mono here. If you're looking for something free and different, check out Comic Mono.