I get my MLB attendances from
https://www.espn.com/mlb/attendance, which shows the Jays just over 31,000 per game average, which will go up as they are solidly in first place and drew 40k+ this weekend. I predict they will finish minimum 2.7 million, for a 33k average over the season, and likely a bit higher as that only requires a 36k average down the stretch in a heated pennant race.