I prefer 2 stage triggers because I find they serve me well. When I change OEM trigger out of AR or bolt rifle, I go with the LaRue Tactical MBT-2S Trigger because it is a very good trigger @ a good price (pre-Bidenomics).
I like a flat blade 2-stage trigger set at 1.75 pounds. For me, it’s perfect. As far as brand, I honestly don’t notice much difference between the premium brands like Timney and Triggertech.
I know a lot of competition shooters seem to prefer flat triggers, but honestly I could never get used to it. Your finger is not flat, it is round. A well curved trigger hugs the curves of your natural contours. Plus, it is the style of trigger I used since first learning to shoot as a little kid. Maybe that’s all there is to it? I don’t know, but I can’t get into flat.
I think my draw to flat is I have large-ish hands and I feel the trigger sits too far to the rear in the trigger guard and my thought is a flat would would put the trigger in a more natural location for my finger. But that’s how I “feel” currently and I don’t have a way to test my theory without buying an expensive trigger haha.