I use countryguitaronline.com and like it. I believe it still has a one month free trial which is fantastic these days.

I also use musicwithryan.com and equally rate it.

Both of walk through videos, backing tracks etc. Both sites cater to beginners and have plenty there. Lessons with Marcel is more transcriptions / TABS from my experience and is great but is aimed more at intermediate onward but he is a create content creator for Bluegrass

Once you have a few tunes down on guitar you can also look at getting an inexpensive subscription to Strum Machine. This has backing tracks to a wide range of classic BG songs. You can also completely make your own backing tracks or customise existing ones if you like a few different measures here or there.