Daily medication for frequent migraines and headaches?

My triggers are alcohol, cold/snow, cannabis. I’ve tried suma and rizatriptan and they lost effectiveness after taking them for months. I get 5 migraine days a month and up to 16 headache days. What daily medication helped you? Triptans have been a dead end as they slowly stop helping the pain and I have to take them more and more frequently. Plus I can barely get my prescriptions refilled before I run out of my 8 pills/month supply. I’m struggling and really need to talk to my Dr about a daily pill. Suggestions?