I quit my job to grade and sell pokemon cards full time. I took my research and created a website that tells you which cards are the most profitable to grade. If you grade cards, check out my centering tool - just click and drag a photo from ebay and it will tell you how it would grade based on its borders.
Also, I would love to buy your collection. Depending on condition, I will buy at 60-80% of value. Please reach out with either photos or a list and I would be happy to give you a quote.