Best way to monetize on twitter?

Lets say I have 100 twitter accounts, each with few 100 followers (all accounts made by me).

What would be the most effective way to monetize them ? I post alot of quotes, and funny pictures etc every day on each account, and getting quite a good response.. Should I just link to some CPA offers once a day on each account?

Oh, followers are mostly all interested in making money online in some way or another..

Thank you.