Can I transfer USD to any crypto accounts?

I’m very new to this heads up. I have some Bitcoin in cash app that I need to move to a different wallet/account(?); I cant do this immediately because cash app needs to verify my id and it’s saying it will take up to 3 days. This is an issue because I need this done in a timely manner. So my main question is: Are there any cryptocurrency platforms that I can transfer plain old USD onto, and from there exchange the USD to a cryptocurrency? I haven’t been able to find any and I would really like to get this over with soon.