This transaction is around 9sat/byte like the above said there is no way to accelerate it using the free service on ViaBTC and the bad thing is you are using Coinbase wallet. We can't do anything that can help to bump the fee except for paid service or look for someone who mines in F2pool with a referral code because they have access to use their own free accelerator from here https://www.f2pool.com/pushtx

Let me try to rebroadcast your transaction to give a signal to mempool. Let us hope that it will confirm within few hours but if not then you only have 3 options: to wait more days, use ViaBTC paid service, or look to someone who mines on F2pool.

Anyway, done rebroadcasting them to some sites listed from here https://en.bitcoin.it/wiki/Transaction_broadcasting wait for a couple of hours and let's see if it will work.