While too much technology isn’t good for kids, a solid tablet can come in handy for all kinds of things. The problem is, it’s hard to find a good tablet for under $100, especially one suitable for kids. But right now, you can grab this Amazon Fire HD 8 Kids Pro tablet for just $90 on Amazon — a hefty discount off its normal $150 and the best price we’ve seen for it all year. It’ll likely never be cheaper than this. With the Amazon Fire HD 8 Kids Pro, you can control exactly how much time your kids spend online, which sites they can and can’t visit, and what they can watch/read/play. If they wa…