Userscripts.org

A list we can modify to put some trackers in it would be awesome

What torrent client are you using?
Because Torrentz.eu offers a list (usually partial, but more than some .torrents offer) that you can copy & add to the .torrent that is currently being downloaded inside of your torrent client.

I ONLY use uTorrent because I have experienced the fastest download speeds while NOT making the rest of my internet slow.
It also usually capps my max download speed or exceeds it.
Some times I download at 3 MBps, when my mas is 2.5 MBps, Ive even seen 3.5 MBps & 4 MBps (MB = MegaBytes / ps = per second).

Anyways, in uTorrent, with defualt settings, all you do it double click on a downloading torrent & the Properties window comes up.
The 1st thing you see is the List of Trackers, and all you do is just go to the last one in the list, make a blank link between it, then paste the list from Torrentz.eu.

I'm guessing other torrent clients also offer this feature as well, which is why it isn't needed here.

Lastly, Magnet Links & TorrCache .torrents usually try to gather as much trackers that are live and seeding a particular torrent, so after obtaining at least one .torrent, try and clicking on as many Magnet Links for that same torrent and get ahold of more torrcache .torrents as you can