Question about hreflang tags on website and language selector to lead visitors to the right translated page

Hello everyone! I need assistance with setting up hreflang tags on our website that has pages in English, German, and Dutch. I have already added hreflang tags to all pages, but we do not have a language selector connected to them. Currently, the language selector in the footer only leads to the homepage in the selected language. I used the 'Hreflang Tag Manager' plugin in Wordpress. How have you implemented hreflang tags and language selectors on your website, and what suggestions do you have for setting them up effectively?

Consider changing the plugin you are currently using, and utilize its settings to customize the implementation. The ‘Hreflang Tag Manager’ plugin may not be the most effective for your needs, and a different plugin may offer better functionality and customization options.