I think kraken is a good one. (maybe only good one?) there price changes feel way more natural then one other exchanges. (for the lack of other words)
"The OAG could not review the practices and procedures of non-participating platforms (Binance, Gate.io, Huobi, and Kraken) concerning manipulative or abusive trading. However, the Kraken platform’s public response is alarming. In announcing the company’s decision not to participate in the Initiative, Kraken declared that market manipulation “doesn’t matter to most crypto traders,” even while admitting that “scams are rampant” in the industry."