I feel that the fundraising that the OP wants is made like IEO because it writes about tokens that can be used as a discount media for the main products, and what I think is not using exchanges, and standing on its own platform as seen in ICO.

My understanding in fundraising is the concept of sharing large shares and only involves angel investors. In the past, some ICOs did things like this, they separated internal tokens to valuable large contributors in real business, and sold different tokens to the public for the purpose of price liquidity on the exchange market.