Yes you can check the fee estimation sites like https://mempool.space/ to check for the right fee to pay but be assured that this can only be done by using a non custodial wallet like electrum. They give you the freedom to customize your own fees by yourself and that site gives you insight on the right fee to pay to have it confirmed faster.
This particular transaction do you have the private key or recovery seed to its wallet. If yes then import it into electrum wallet and rebroadcast the transaction again if it has already been dropped. Yuh can check this guide on how to download electrum wallet https://bitcointalksearch.org/topic/guide-how-to-safely-download-and-verify-electrum-guide-5240594