+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Police records, proof from letters or social media that you are being threatened. photographic proof if you have received any injuries related to harassment, hospital records if you have been in hospital etc
 
If you want to come to Canada next you need to apply for a TRV. If you succeed in getting one you must claim asylum at the port of entry with your proof.