Question about where to apply with my stats

Hey so I’m new to this subreddit mainly because I’ve been chasing MD schools but wanted to take a chance with DO and I have 0 clue what I’m doing

I have a 3.7gpa and a terrible mcat score (488) I’m retaking August 1st and honestly I’m stressed the test date is too late to get an acceptance.

I’m from Canada and don’t know much but thought I’d ask if

1. I have a chance??
2. What schools are more Canadian friendly
3. When to apply. I know that it’s done in a rolling basis so does that mean I should just apply as soon as possible and then hopefully my new mcat score comes in ASAP?