I think no platform holding ICOs nowadays and maybe if there is it would be called IEO. But this is conducted on exchange platform not another one for solely ICOs alone. If you want to avoid frauds and scams, then go for huge exchange platform such as Binance, Kucoin, Gate, Okex, and Huobi. These five are known for their reputation if there are new projects. But lately, they arent launching new ones, since SEC warned people about the risk on investing on these IEO projects.