The BEST way to get rid of acne scars is with a fully ablative laser. Unfortunately, they are very painful, require a lot of downtime (several weeks), come with a high risk of infection, and are known to cause permanent hypo-pigmentation quite regularly - even on fair skin. Ergo, these types of lasers are usually only reserved for people with SEVERE scarring.
Non-ablative lasers are less invasive, and fraxel (which I see you have done) is one of the more popular ones for acne scars. You will not get as much improvement as with ablative lasers, but they are much safer with a much reduced risk of hypo-pigmentation. I thought you had some succes with this before - do you not want to go this way again?
Dermarolling and stamping:
There is not a lot of good research evidence supporting the efficacy of these devices. Some people say they are great, others say they do nothing. Although they might work okay when treating individual scars, you have to do it a lot to see improvement, and are quite ineffective most of the time. Lots of people on here do it, though, so it's not hard to find logs and make your own conclusions about whether or not it works.
Another painful option with mixed results. You get your face sanded off and hope it grows back smoother. Like an ablative laser, there is a lot of downtime and a greater risk of infection. Usually reserved for severe scarring, but can yield impressive results. However, I knew someone who had it done and it did nothing. Other than cause them a lot of pain, of course.
This is a new treatment where you first have dermabrasion, and then new skin is sprayed onto you (manufactured from your own cells). It is a rare and hard to find treatment. It is used for burn victims and other types of scarring that have different pigmentation that your regular skin. However, it has been found to be effective for acne scars. There is a thread on here somewhere about it. It is not common yet, especially in the states, so it is hard to find info. It appears to be a pretty intense process, and is probably quite costly and with similar risks to dermabrasion or ablative lasers.
Another one that lots of people on here have tried, so it's easy to find comments about it. It is usually used to treat icepick scars - the ones that are little and really deep. It appears to be quite effective when done properly, but only on this particular type of scarring.
Cut out the scar, and then sew it up. Can be useful for treating individual large, deep scars, but not much else, and results are mixed.
SO . . .
Although one would think we would have a great way to treat acne scars by now, there really isn't. If you've looked through the posts in this forum, you've probably already encountered most of what is available, and it's not that exciting. Either you are taking huge, painful risks, or you are doing something like fraxel that will give you some results, but nothing magical.
I found that during and right after Accutane my scars all looked worse and I thought for sure I would want to do something. Now, a few months later, things are so much better. Accutane even made scars I had barely noticed for years suddenly appear again - but now they are not noticeable again.
Also, skin is so much more easily damaged on Accutane, and the scars you get on it will tend to be worse, so what you want to do as much as possible is NOT get a lot of scars now. Don't pick (I'm sure you know), and treat your skin nicely - lots of moisturizer, nothing drying, and everything gentle. You are playing with fire a bit by continuing to put so many topicals on your face while taking this drug. They will not speed up the Accutane process or reduce chances of relapse, but they will just make your skin weaker and more prone to scarring. The best way to get rid of a scar is not to get it in the first place. There is not a single method out there that can completely get rid of scars - once you have it, you will always have it, even if you can make it 'better' through cosmetic lasers or surgery.
Do your research, read lots of reviews, go see more than one specialist to get more than one opinion, and wait for a while before deciding because your skin will change a lot after you come off Accutane.
Best of luck.