I would hit up affiliate programs for supplements, gyms, machines, etc. Your ctr will be shitty no matter what you do really, but the payout would probably be more than adsense or similar.
Great question and yeah that is nice traffic for a website only 9 months in existence.
I would have to say it would be pretty dependent on advertising competition in relation to the content of the site. I realize that advertisers can pay for spots regardless of what the site's content is but I think it would appeal to them more if the site had information pertaining to their product/service.
Anyway good luck and I would like to hear more about this from an expert in ad placement or someone who is very successful with advertising integration into heavy traffic sites(RJ?) :p
Good job!Drive 500k a month in unique visitors since the site is only 9 monthes old.You can apply affiliate program to get big profit.Such as CJ,shareasale,azooglead and so on.