It’s not a real proper seedbox but I would suggest a subscription to Alldebrid.
You will get the ability to download directly from many hosters, and also this ability to use the Alldebrid seedbox to “convert” torrents to DDL links.
It’s a cheap subscription and it does everything I need to get movies, series and so on.
I have been using that for years and found it to be reliable.
You probably can get a free trial for a month if you want to see what the service does.