Crowdfunding in crypto? It is more like launchpads nowadays. See below.
https://www.binance.com
https://www.okx.com/jumpstart
https://www.huobi.com/en-us/
https://www.kucoin.com/spotlight-center
https://www.gate.io/
https://makerdao.com
https://daomaker.com
https://www.tenset.io/en
https://polkastarter.com
https://seedify.fund
https://www.pinksale.finance
https://trustswap.com

And many many more. Just google "crypto launchpads".

You can sell shares here: https://wefunder.com