Most likely MediaTek for the lower end and Qualcomm's Snapdragons for flagship phones.
Huawei still needs license from BIS to use Snapdragons but it should be easier to get.
But Qualcomm is an American company. How would they be able to sell to Huawei?
It should be easier to get license to sell ready-made components to Huawei.
the US's goal was never to stop selling to Huawei altogether, it's to prevent Huawei from moving up the value chain, i.e designing their own SOC.
It's the same reason why other Chinese companies like Xiaomi and Oppo are not included in the entity list. You can bet once they starts to develop their own CPU, or their own OS, they would be immediately placed on the entity list because of "national security" reasons.
They will use a mix of Qualcomm chips for high end phones and Kirin chips made by SMIC for lower end phones. At least that's my guess.