We also use a Wfi Ranger but there are other options out there. Checkout the
RV Mobile Internet Resource Center.
All that being said we only find useful WFi at a tiny fraction of the RV parks we visit. It’s normally too congested. Try getting on the campground WiFi at the office and see if it’s usable.
We find using cellular internet a much more satisfying experience. If you don’t want to go the full Weboost route, you can consider a hotspot with an external antenna.