A paid accelerator would work, but are you ready to pay the cost, because they can be quite expensive. The tx fee attached to your tx is 27 sat/vByte and the fee rate for high priority in the mempool is ~ 36 sat/vByte right now, it is not so far off from what you paid, so i recommend you wait for sometime to see if the fee rate would drop, and your tx would then be confirmed, but take note that fees may go higher and you can now consider a paid acceleration service.