Not many ramps...Only ones I can think of accessible with a trailer are Wilsons Shutes, Shaws landing & Franklin.....not sure where you're coming from...
For a short trip, with a 'bigger boat', I'd recommend Wilsons Shutes to Shaws Landing.
These are between Meadville & Cochranton.
One of the deeper sections of the crick...although you'll probably still have a little draggin' to do.
They aren't far apart either...
One option would be to put in at shaws & see how far upstream you can make it without portage, then float back down.
Another option would be to float it in a tube to get a feel for it, then hit it with the boat to fish.
Or, you could put in at Wilsons & head upstream toward meadville too...couple nice sections right there.
For a longer trip, Wilsons or Shaws to Franklin...but there's plenty of pulling there.
Have fun.