If you proceed with a commercial gift, compare providers based on the "extras" they offer: Rules to Name a Star - IAU Office for Astronomy Outreach
Best for a romantic or memorial gift. You receive a certificate and coordinates, but the name is only recognized by that specific company. buy a real star
If you are looking to "buy a star," it is important to understand that you cannot legally or scientifically own a star or its official name. All stars are named and cataloged by the using alphanumeric designations for scientific purposes. If you proceed with a commercial gift, compare