If you have not already seen it, check out Buildawhale. It does a lot of what you are talking about here, but includes an upvote bot feature. So you send 1sbd or more to get the automated upvote, but then they also have a team of curators looking at every post submitted and selecting the best for their daily curation post.
The Buildawhale program is run by witness @themarkymark, and he is striving to make it the best in the business.
It's not exactly a resteem service, but being in their curation digest is no small thing. I've never managed to crack it personally. Haha
@themarkymark definitely seems to work hard to make the platform better and to support Minnows as well. I have been thinking about joining
I use buildawhale and I'm registered on the discord server, I think @themarkymark is a decent chap.
I think I hit the curation digest once too 😁
I have used several of the upvote bots and I find @buildawhale to be the best, and I know that if I do a good job on my blog I may get included in the curation digest.