Welcome! Now, I went to look up welcome in Finnish and it gave me four choices, with no description of the differences!

So is: mieluinen, tervetullut, tervetulotoivomus
or toivottaa tervetulleeksi

the correct way to say "Welcome to Pet Talk!"?

When it gave me four choices for Welcome, I didn't dare try Pet!

In any case, glad to have you here!