Define "best" in your scenario? What's you're budget?
I have a Toto Drake II and a Mansfield Cascade in my house. Mansfield and Toto are the only companies that make significant numbers of toilets in the U.S.
My Toto was made in the USA.
My Mansfield was made in Colombia. Mansfield makes many, many toilets in the US, but they're owned by a Colombian company, so some models are made in Colombia. That's fine with me.
You'll read a lot of complaints about Mansfield, but the complaints are almost exclusively based on the Alto toilets. Those are super cheap toilets that builders install in new homes to cut costs. Mansfield has some good toilets, like the Summit series and the Cascade.
If you want something you can get locally that's relatively affordable, the Mansfield Summit is made in the USA and can be bought at Menards.
I bought my Mansfield Cascade from a local plumbing supplier. Now they also can be ordered at Menards.
I bought my Toto Drake II from a website called National Builder Supply. They have a specialized process for packing toilets and mine arrived in perfect shape.
The Toto is a better toilet than the Mansfield, but the Mansfield is a good toilet and cost 1/3rd as much as the Toto.