Hi. Those biggest plants you have - if you were to initiate flower right now - will likely yield 18-32g dried per plant, if you do everything right.
If you are stating you want 100g per plant, dry, you need to veg those a lot longer and when it comes to autos you don’t have that control.
I would suggest you continue with the grow without putting any yield expectations on yourself. It is what it is given your container size, skill level, and the fact you’re growing autos.
I think you have very healthy looking plants so you are doing something right. Enjoy this run, learn a ton, take notes, and use those experiences to shape your next grow attempt.
Good luck