I used to watch the Tim Tracker and then watch the podcast for the DIS but both of those changed so much that I really don't find enjoyment like I used to.
I'm probably in the minority in that my first stop is usually Disney's own website. While the work has been done already from my 2017 trip where I did a lot more pre-planning than our 2011 trip I went through the website and listed out the rides, attractions and shows I wanted, dining places I was interested in, etc. For our 2022 trip I just updated the spreadsheets with current information.
I also like to go to YouTube and watch ride videos (those also get me excited for the trip) unless it's a ride I'm not wanting spoilers on. I'll also listen to ride music on YouTube as well.
Asking questions here is great. I was lucky to find DISer friends from here IRL that lived in my area so we always talk to each other and ask questions about things too, like "what do you think about this restaurant" or "did you like so and so ride?" 3 of the DISers were able to go on Tron already so I got to know how they felt about the attraction.
We are generally park commandos so that affects our research and planning. It was however nice on our last trip to take the skyliner from Epcot to Riviera grab a coffee chill in the lobby walk a bit around and take the skyliner back to Epcot. It was a good break. Monorail hopping is also nice break.
Each trip we take we learn new things and we also learn which rides are okay to just do once or not put a huge priority on it. For us Rise was fine but not worth the hassle involved so we were happy to get in with a reasonable wait just after it reopened from one of its numerous breakdowns. Now we know if we don't get to ride it on a trip that's okay. But PeopleMover is a must at least once but preferably multiple times (especially trying to do daytime and nighttime).
We're in the very early stages of planning Japan for next year and going to
Disneyland there and DisneySea so that will be quite the change for us having only done DLR and WDW.