Site Unseen offers, OpenDoor and OfferPad

I have a few listings coming up this year in Indianapolis where the seller wants to sell directly to OpenDoor or OfferPad. In the past, both options were difficult to close. I would love to connect with more cash buyers who are willing to not walk the property until they have an accepted offer. They want to receive a site-unseen offer and are willing to sell slightly below market value for the trouble. Most investors in my circle need a bigger discount to take the risk of not touring the home upfront if writing an offer. Has anyone used an alternative to Offerpad or Opendoor that purchases competitively site unseen and minimizes foot traffic?