Dogecoin had been around more than a decade, and the year 2030 is not very far from us anyways. I am very confident Dogecoin will be around with us in 2030 and beyond, just for their historical value and fast transactions Dogecoin is the staple of memecoins and the most reliable one.
SHIBA and PEPE will also be around in 2030, but their volume will not be as big as the volume of Dogecoin.

I personally consider Dogecoin to be the king of memecoins and the one which is more worth it to hold and pay attention to, their community and "investors" seem to be committed to pump it's price up to one dollar... Which is something very unlikely to happen to be honest.