Romans 1:5 change wording of "among the non-Jewish people groups" to what you see. The Greek says "all the people groups" and that includes the Jews, of course, and Paul certainly included them in his ministry.
Romans 1:18 change "everyone in the "who" clause to "all" and the number of the verbs "show" and "do" to match. This also matches with the "them" in the next sentence.