Deepl it's so nice, I'd like it to be more integrated with macOS, like a shortcut in the Menubar to quickly translate something, or a shortcut to bring it from anywhere.
I use Microsoft Translator because I like the simple user interface and there is a mode where it has two microphone icons on screen and you can have a back and conversation with someone of a foreign language persuasion of our choosing.
Haven't tried any others besides googles translation website.