Brother internet is a open source platform for everyone. But the thing is where you have to find the best thing by your self. No one can find a best place to you. But i want to give you some suggesting though you already told that you have premium account and you want fo work in bounty and signature campaign . Then you can follow sone bounty related youtube channel those are also working in bounty pkatform. Or you can use this bitcoin talk forum topic which is in market place section. Go to market place section in alternative catagory then select bounties topic where the bounty campaign published.