Hello mate! I am also in the cohort of 2024 and looking for Eco tutoring in my senior years. I currently go to project for year 10 Maths and it is great. The environment is friendly, you meet some lovely people, the tutors are nice and you get an ipad to do and submit work. One of the factors that is making me consider project for Year 11 Eco is tutorials as I am pretty sure its the only tutoring centre offering eco that also offer tutorials. Tutorials are basically when one tutor helps a maximum of four students with work from either tutoring or from school. (this is very biased lol) I have heard that Crest is pretty good.
here are some other thing to consider for other tutoring centres
Ace - only 7 weeks instead of the usual 9 weeks for other tutoring centres and does not offer online
Talent 100 - a bit on the expensive side
All of the above tutoring centres has produced state ranks so I am pretty sure any of them are good.
Other tutoring centres that I know that offer eco include:
Dymocks tutoring
Dux College