I’m with you - I think there’s a great chance we keep the house...
Economist/You Gov 9/2- 9/4 dems +5... which means we keep the House
Rasmussen 8/26- 830 dems +4... which means we keep the House
https://www.realclearpolitics.com/epolls/other/2018_generic_congressional_vote-6185.html
I think Rasmussen got lucky in 2016. They used landlines, which may have given Trump a boost in the poll numbers, but the Ras numbers turned out to be correct because of Trump turnout. As you posted, right now Ras (D +4) and yougov (D+5) are pretty close. I suspect that yougov has better methods than Ras, but nobody knows for sure what is going to happen. All we can do is try to convince others and vote.