Always keep your NAP same across multiple platforms, do not use different NAP to avoid confusion. Use Schema markup on your website to provide search engines with your structure data.
Yes, as Nomad mentioned, NAP (Name Address Phone number) should be consistent throughout all citation areas. On your website, Google Business Profile and all the directories you submit the info to.
You might not be making money form your website but you need to treat your website like a business and build a brand for it. It is very important to remain consistent with your name, address, and phone number across multiple platforms to build a brand. Getting high rank on search engines is also a way to build your website brand.