The early voting for the Midterms is now available in many places. You can early vote at a polling place: https://www.eac.gov/voters/register-and-vote-in-your-state
Or you can use mail-in voting: https://www.eac.gov/voters/national-mail-voter-registration-form
It's highly recommended to avoid election day voting in person, and vote early.
Then just post it yourself instead of using a spam bot. And if you can't be online enough to do it, then don't do it, because it's obviously not a priority for you.
And if it is a priority, then get engaged and post and comment and steer those discussions.
But don't just add spam to an already spam filled space. It's not an acceptable option. If you don't have time either make time or don't do it.