I expect this has been discussed ad nauseum, but I did a thread search to no avail, because I hate to be "that guy." So at least a minor measure of due diligence as attempted and I came up empty.

I recently moved from left to right seat and have some decent seniority. For really my first time at Delta, I'd like to try bidding to fly with LCAs. How can I do that? Is there a fleet/domicile list of LCAs somewhere? I know this may be a closely guarded trade secret for some, but I'd appreciate any gouge that can be put forth.