Promar 200 is a wall paint.
How much do you want to spend? Here are my experiences/review with products from $30 to $90 per gallon.
I started in my house remodel using BM Advanced and agree it behaves kinda close to an oil. Sag resistance after you lay it is a challenge if you apply it heavy and takes a while to dry because of the alkyd. So do light coats. Also kinda of expensive. It was around $50 at the time. I think it's $70 currently. Also yellows very slightly. Dover White.
Did a large expansion on our home and used Glidden interior/exterior High Gloss from THD. With a little splash of extender I was impressed on how nicely it flowed out. It was like $28 at the time. Did about 200' of tall baseboards, 14 window casings and like 8 doors and turned out great, especially for the price. I actually used the same paint for the exterior fascia, overhangs and trim. Same Dover White.
I tried the newer Behr urethane/alkyd in a dark brown color and hide was very poor. It was on an outdoor table and paint started flaking in less than a year, so not impressed, at least on repaint wood. I also used it on gutters, which I think did much better. It does flow out nicely. I don't remember what that was in price, maybe $45? This may be a good option for you.
PPG Breakthrough is also an excellent product. I bought a gallon for this black TV console I built. It's extremely durable, but expensive. IIRC it was like $92/gallon with my buddy's commercial account! It dries really fast too, maybe a little too fast for a door if you are doing a large surface, unless you spray. Very tough finish. I had actually bought a gallon of the Dover White to try a while back before our expansion but didn't use it except for the stair handrails due to the higher cost. I decided to use it for furniture and cabinetry projects instead. My wife had me paint a little bed for one of our girls and turned out great. I sprayed it with a spray gun. I intend to use this instead of the BM Advanced in the future due to the fast dry time.
I hope this helps.