OP seems you aren't new here, as you are already full member, curious if you don't know some popular sig campaign managers.
If you don't mind, I will write some of them here, you can check their campaigns too or contact them, experience means a lot and they have it here for years:
yahoo62278 -----his managed campaigns here----->
https://bitcointalk.org/index.php?topic=1704638.0Luptin -----his profile here----->
https://bitcointalk.org/index.php?action=profile;u=520313Darkstar -----new but seems good----->
https://bitcointalk.org/index.php?action=profile;u=507936Edwardard -----not new, good too----->
https://bitcointalk.org/index.php?action=profile;u=710241aTriz -----new but very experienced----->
https://bitcointalk.org/index.php?action=profile;u=135920Lauda -----old but not active in manging but experienced----->
https://bitcointalk.org/index.php?action=profile;u=101872