I tried upvotes.io and everything was good before I find a new service with reddit promotion. It's
https://reddit-marketing.pro. They can offer you the same thing as upvotes.io, but also they have complex promotion, so if you have a big amount of content it's like a rescue for you. They do 25 posts a week with 60 comments and also moderate your subreddit. So if you didn't use
https://reddit-marketing.pro before I really advice you to do it right now!
as you suggested but quite a few of my rush orders weren't fully delivered which I had to delete and re-do. It was such a hassle on my part. Wouldn't have had to go through this if I used upvotes.io in the first place.