Most courses have both weekday and weekend groups. In terms of competitiveness, there’s probably not that much difference – most courses are going to have their mix of scratch to 20 handicaps. You are more likely to find that the comfort zone relates more to things like age, jobs, single vs. family, etc., and these things will vary from course to course. You should identify the price range you are comfortable with and then play several courses to see where you like to play and where you feel that you fit in.