I’ve used the H&R Block software for many years, but this year I did my taxes online, at olt.com. Partly to save money, and partly because I don’t have windows anymore.
They were among the 8 listed services here:
https://apps.irs.gov/app/freeFile/browse-all-offers/
It mostly went fine. If you want the free state return, you should follow the link from the irs website, though. If you go to the olt website directly, it’s different.