This site, in honor of Tales of Symphonia finally coming to Switch, is a guide to collecting all the titles in the game (which is to say, 100%ing it).
This isn't a walkthrough, more of a checklist. It's best referenced at the end of your first run/beginning of your second.
Some things are still under construction (Treasure Hunter and Gigolo, in particular). I'll be filling them out as I play through the game myself, so they're coming soon.

Unless otherwise noted, my info is coming from the Brady Games Official Strategy Guide^TM or the game itself. I'm committing to finally 100%ing the game on switch myself (this guide is mostly for me), so I'll be personally double checking everything as I play.

(If you haven't played the game before, I don't recommend hanging out. There are major spoilers lying around. I plan to make a spoiler-free page for missables, but if you wanna 100% the game you have to finish it at least three times anyway so you can probably afford to play blind the first time.)