In Canada I use https://simpletax.ca. Their software is super easy to use (even easier than TT) ...and it's pay what you want. Needless to say my "donation" to them has been increasing over the years.
Make sure you update your privacy settings: https://www.privasectech.com/changes-to-simpletax/
I think the reason good free tax filing exists in Canada, but not in the US, is partly because US tax code is too complicated, and partly because there there are dozens of them: federal, 50 states, and a couple of territories, each with their own tax rules.
In Canada, you have one federal and 13 provincial and territorial tax codes; and you only have to file taxes to two agencies: CRA/ARC and Revenu Québec. It is orders of magnitude easier to make a tax software for Canada, thus giving it away for free is possible. For many years, SimpleTax/ImpôtSimple was a three-person operation. Their team has grown to 12 people now [0]. I imagine if they want to extend their services to US, they need to increase their headcount by a factor of ten or more. And at that point, not charging for use would no longer be an option.