I had the Phonak Audeo 70 on trial for a month. The audiologist customized it to compensate for the tiny frequency losses (the theory being that what would be insignificant losses for the majority of people, could be be more impactful on another small subset of people and trigger tinnitus), and we tried various noise programs. It didn't have any effect. I returned them back at the end of the month.
My tinnitus is very high pitched (around 12 kHz), and that doesn't help when most hearing aids stop at 10 kHz.
So, after trialing 4 anti-epileptics at low doses, and the hearing aids, my ENT (who is considered among the best tinnitus specialists in the country) basically said "there isn't anything else we can try, sorry. Bye bye."