I personally am a big fan of navbars as they are a clean way to navigate any website. The classic navbar, that you are likely seeing on this site if you are viewing this on a desktop browser, is extremely simple to make and you can easily find guides to develop these. The one I personally used is here. What was not as simple for me was creating a decent navbar for mobile. I had to develop it for a site that I was working on for my church that never concluded development. I copied it over to my personal site and learned a lot in the process of developing it so all was not wasted. It did however end up taking me way more time than it should have and in the hopes of saving some other poor soul some time, I decided to write an article about how I did it on my site.