
to everyone that has said
Honda or something with a Honda engine. I've never been disappointed with a Honda small engine. I think they're one of the few companies that still makes something worth a damn in today's world. I don't know how much money you want to spend but Hondas do tend to run higher $$$ than other brands, for obvious reasons (like it might not fall apart in the first year)

I think that you could also look for something used and have good success with it in the future if you check it out before purchasing. If you want something new you could look at a few options like these:
The Honda Self-Propelled 3-in-1 Variable Speed Lawn Mower with New GCV 170 engine and auto choke offers a simple, adaptable and reliable design. It efficiently adapts the mowing speed to match your stride
www.homedepot.com
https://www.google.com/shopping/pro...=2ahUKEwjvhOWrsr72AhUhHjQIHf8cBL8Q4jV6BAgBEEs
If money isn't a particular concern or if you want something that is generally high quality and pretty bad *** I would highly recommend the
eXmark Commercial 30 X-series mower. I used this mower when I did some work with a mowing company and it was probably my favorite non zero turn mower. Built strong, ran smoothly, impossible to bog down, wide deck, self propelled, not ridiculously heavy. If I had the budget or a good reason to buy one I would. Specs are in the link below.

Explore Exmark Commercial 30 self-propelled mowers. Get specs and learn about available models.
www.exmark.com
Not an answer to this question but a little side info on my dad's mower (which I use and maintain more than he does at this point) Sadly, like most good things, they are no longer in production and are becoming harder to find used if you still want to get your hands on one. It's an old John Deere 14SB. Originally purchased in 1995 (before I was born) from our local John Deere dealership in downstate Illinois. If you look up reviews on it or look on other forums with people who own them, there's nothing but good things to be said about this mower. It is an absolute tank. It starts first pull every time even in the spring after sitting all winter. It cuts well. The old adage "nothing runs like a Deere" is certainly true in this case. They just don't make mowers like this anymore. It has a 5.5HP Kawasaki FC150V engine. At 100 pounds the thing isn't light weight but being self propelled its not a problem. And the weight helps a lot in taller, thicker grass, the deck doesn't get pushed around as much. The mower has variable speed self propulsion which is a great option to have when you're doing a faster cute on shorter grass vs a slower cut on longer grass vs leaves etc. The triCycler option came from the factory with a mulching plug (black plastic mulch plug insert), a side chute, and bagging. We pretty much only use the mulcher on grass unless we want grass clippings for the garden. We use the bag mostly when the leaves are falling. I think the deck has 7 leveling settings which gives a huge range for cut length which is nice. We have maybe a half dozen blades for it that we swap out regularly although some are getting to the end of their life and should probably be scrapped. The only downside to owning this mower is that parts are becoming more and more scarce. Most John Deere dealerships don't stock parts for it anymore so we have to hunt through eBay to see what we can find. We really need to replace the drive wheels before this summer but have struggled to find replacement parts that aren't $$$. Regardless, this is a great example of a quality machine that if you take care of it then it'll take care of you!