Hello there, @sales283.
I can help pay your vendor with a paper check in QuickBooks Online (QBO).
You can choose the Paper Check option, and we'll mail the check to your vendor's address.

If online payment or the above option is not applicable for some of your vendors, simply save and close their bills and not choose the Save and schedule payment option when you create them. Then, mark them as paid and print the check yourself.
If you have other questions in mind, feel free to go back to this thread.