why not trying to buy or ivest in IEO from big exchange like Binance, Huobi, Kucoin and etc.
as i remember when project are launching IEO on this exchange are ended successfully and pumped until x2-x10 after listing and tradable
not all projects will be as successful as you think, even though those listed on the IEO are large exchanges. I followed some IEO, it looks safer and faster, but it makes the investment cycle in new projects also go very fast. many investors take off their coins when trading opens. not much to hold back for long.
I think the percentage of successful IEO is greater on big exchanges like Binance and Huobi and i am never invest to IEO project on small exchange. I am never hold coin from IEO for long term, when listed usually coin pumped and it's time to sell and make a profit. You can try it in exchange platform like Binance and Huobi.