Started recently as a collector, I'm new at playing still. I have loads of cards that are doubles or from random sets. I'm wondering what's the best way to sell them. They are worth average 0.21 CAD. No one seems to want to trade for these cards with others at similar price points

I've sold a few high priced cards (2.00-25.00 each). I am currently selling a mix of 30 cards of the same color for 4.50 dollars, is this a good way to sell, by one or two colors or group by sets ? Or should I just make mixes of everything?

What are your preferences in buying mixed lots?