I understand your struggle and first of: thank you for selling your votes via smartsteem.
I really appreciate that and I'm glad that you found value in it!
Now - I understand that diversifying is important. But sometimes, it's all about doubling down on one thing.
I personally decided to choose STEEM for this.
1.) it is currently still undervalued. Has a marketcap of 1 billion which should actually be at least 5x the amount.
2.) it has an incentive to accumulate. You can sell and delegate your steempower - or even use it to upvote your posts / other posts for curation.
3.) has a lot of projects and users developing on it.
4.) has a ton of activity, active users and investors on it
5.) it helps you to achieve more on STEEM.