I have a camp in Tionesta. Since I live much farther away and have a 2 year old, I don't get up there as much as I'd like, so finding a time to meet will likely be difficult. But I can help with places to go.
From Knox, generally, go north my friend. You are pretty much on the southern border of the trout zone. But certainly within easy day trip range. I'm not saying you won't find anything south of here, but if you make a line from about Oil City to Brockway, most of the good trout fishing will be north of that.
PM me and I'll give specifics, just let me know what you're looking for. Generally, there are large stocked streams with often good hatches, medium sized streams which often have wild browns and are sometimes also stocked, or small streams full of native brook trout, in which you'll catch mainly small fish but in a more wilderness (no roads behind you) environment.