Hi, I think my username probably gives away the type of stringed instrument I am most familiar with.
I use James Eager at EBassGuitar. You may also see him marketing as the Bass Lab Plus or Bass Lab Plus 2.0.
The content type is similar to Justin’s I.e. module based teaching using short videos of about 5 - 15 minutes duration. You can check him out on YouTube - it’s a good indication of what his lessons are like and I think he also does a 14 day trial. He’s probably got more content than Josh at Bass Buzz, but less than Justin. I’ve been following his content for 2.5 years and still have plenty to go. I think he’ll keep releasing content such that it will take me a long while to get through all of it.
He has a similar community to Justin, though I would guess Justin’s is more active.
Good luck with whoever you decide to go with, and welcome to the magical world of bass.
Edit:
The EBassGuitar lessons are curated into a learning pathway.
If loads of content (also with learning pathways) and a bit more charisma is your thing, you may want to try Scott’s Bass Lessons (SBL). He also does a couple of free weeks.