Growing 70 Accounts

All, since I last check in I have effectively gotten ~25 accounts up and growing themselves ~80 followers/acc/day. I am currently redirecting all of my traffic and new followers onto my main page(s) and sites. I am currently working to scale up my project to 70-75 accounts within the next two weeks. For those curious, my eventually my end goal is to grow them all to 10-15k then either sell them or look for more long-term income options with them.

My question to all is: What niches does anyone currently see as being the most profitable going forward? I'm growing a wide range of niche(s) and just was wondering which I should focus on.

Additionally, I lurked on the site for ~2 years and only in the last few months decided to get serious. I've had a lot of help/instruction along the way from this site and several individuals. As such, I felt it was only fair to be open and field any questions. I'm more than happy to answer the broader questions everyone may have in this thread, and any more specific ones feel free to kik me at my username: fuzz

Thanks!

Hmm fitness, dogs, pets, luxury seem okay for me.