You'll go crazy looking for a handful of well known audio types. And frankly there are a couple dozen at least that are often seen in audio, dozens more typically seen in antique radios.
First, most valuable tubes have numbers starting with 6 or 12. Skip over the oddball ones - 1, 3, 4, 5, 11 etc. That first # is the filament voltage, and most of the oddballs are from series string TV sets that add up to 120V.
Any really big tubes with 4, 5, or 6 fat pins may be valuable, especially if they have 2-digit numbers (27, 45, 80 etc.). These are radio tubes from the 20s.
This should help you sort at little bit and evaluate how many potentially valuable candidates you have. If you posted better pics we could help you ID them. Don't count on finding a treasure trove from the average TV repair guy, but there will be some good ones.
I personally would never throw out tubes, because they just don't make em anymore (essentially). You can almost always find a home for them.