S&W SD9 (and SD40), while not known as a "shooter's gun", is excellent. While the striker is partially tensioned, it is essentially a DAO striker in that there is a long pull on every shot and it has a full length reset. Holds 15 rounds, is the size of a G19, comes from a major manufacturer, takes M&P sights, has aftermarket support from companies such as
Apex, and is routinely available, brand new, for
less than $300. The firing mechanism uses a pivoting sear, but instead having ~0.03" engagement with a fully tensioned striker and pivoting down (like a P320), it has 0.06" of engagement of a ~1/3 tensioned striker and pivots rearward. Unlike the P320, it also has a tabbed trigger safety that prevents motion of the trigger (and trigger bar) due to inertial events (drops, knocks, mallets, etc.) which not only prevents the firing bin block from being disengaged, but also blocks movement of the sear.
Again, not a "shooter's gun" but a
very affordable and capable HD gun, that is drop safe AF. However, it doesn't look cool on FB/YT/IG.
ETA: The stock trigger pull weight on the SD9 is very similar to that of a stock P320, 7-7.5 pounds. The weighted portion of the trigger pull is just 4-5 times longer than that of the P320.