Shalom, With G-ds help I will give a lecture about this topic. I want to create a whole series of lectures about converts, Bnei Noah and the lost tribes and everything they need to do. As for your question: the people who feel a strong draw to Judaism can either be converts and need to convert, or they are Bnei Noah or they are really Jewish and need to find their roots and start living as Jews. There is always the option of them being part of the lost tribes and Bezrat Hashem very soon Moshiach will come and he will reveal to us who comes from which tribe. All the best, Rabbi Alon Anava