If you're looking for a new ringtone, there are several websites that offer thousands of options at https://toqueparacelular.com/. Some of these sites will let you search by a song title, genre, or popularity and will even display lists of available ringtones.
Once you've found a site that offers the ringtone you want, you can select it and then click on the "Download" button. Some websites will require you to enter your e-mail address or other information to download the tone.