Some years ago, I did two years of in-person lessons and got to "campfire strummer" level - know how to hold the guitar, learned the basic chords, read music, etc... I played a lot after, but struggled to really increase any skills.

Last November, I started Tony's Acoustic Challenge and I'm really enjoying it. It is very structured and focused more on practicing new things instead of perfecting one thing at a time. 5 days a week you have something new to practice and he wants a minimum of 10 min/day - preferably more of course. But it is amazing what just 10/min per day working on a skill will do.

He does have a 30 day starter course for new guitar players to teach the basics, but I've not tried it as I felt I was past that. So I'm not sure how it would be starting as a new player. I paid $200 for a year subscription and I'm really liking it. But certainly go through the starter videos before paying (though there is a 2 month money back guarantee too). One nice feature of TAC is the community around it also. There is a forum to ask questions or celebrate victories. There are also online jam sessions (and live jam when COVID wasn't a problem). But TAC doesn't really teach you songs (there is a $$ add-on, but that isn't the point of the lessons). Like you said, I wanted some structure and TAC does a good job of simply saying - play this for 10 min then come back tomorrow for another 10 min.

Yousician is kind of the opposite - more like playing guitar hero. Their lessons are a little more rudimentary and if you don't really get good at the one song they have you play, you'll struggle to continue to move up. But they also have a free time-limited way to use the app (like 15 min/day). I had the one year subscription and enjoyed it, but didn't progress like I hoped. I still play the free side for 10-15 min occasionally when I want to play a song.

Two others I've looked into are the Fender online and Masters' series. But I've not tried them, but look interesting.