This article assumes that you have backed up your wallet and updated to the most recent version of Dogecoin Core (currently 1.14.2).
At the time of writing, you can get a torrent here which contains blocks until January 29, 2021. Note that it is not a single Bootstrap.dat file, instead it contains the blocks and chainstate directory.
Once synchronized, consider forwarding port 22556 to help the network. This should give you over a hundred connections instead of the usual 8:
This will, of course, create significant network activity as can be seen in Dogecoin Core under Help > Debug window > Network traffic. This is my traffic from just two days:
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Edit: My Dogecoin wallet on a PC that was running 24/7 still went out of sync multiple times:
Let’s not forget that Dogecoin was created as a joke.
Edit 2: I do not recommend using the full node wallet (version 1.14.2) if you’re just getting started with Dogecoin. Consider using a simple mobile wallet like Trust Wallet.