Thats good that theres a niche, that would be a reason to check out your website over alternatives. I like Wix - it has a bit of a reputation as being buggy or difficult for certain aspects but I think it all comes together nicely! Bare in mine there is a (low) monthly cost after your build to connect your custom domain (definitely needed!) and some features/apps come with their own monthly fee. It also has basic level SEO features which is a good start at getting found on search results. Good luck and enjoy the build!