Since you want those coin that are good for mid term trading, I would suggest you those NFT specially on those that are related to blockchain games like SLP of Axie Infinity, TLM of Alien Worlds, PVU of Plants vs Undead, etc. I believe these tokens/coins are good for mid term investment since these ones are very volatile and dependent on the hype, demand (as always), and updates on their respective developers. Their prices really went up and down for a short period of time. DYOR still.