IS carrot the best website builder out there? Any other suggestions?
That answer depends entirely on what you need. If your focus is purely on the website, then they can certainly be a great option. If you are looking at more than just a website with a more integrated approach to your investment systems, then I would look at other options.
There's a ton of "no code" options out there. I'm partial to WebFlow and have made a number of sites using their pre-built themes. Can also insert custom code blocks.
What are you trying to build?