As in a previous post, I use the grill compartment of my double oven. It is usually warm enough to do the job. I also have a large hostess trolley. DS won it in a mess christmas draw one year before he got married and gave it to me!
. These days, when we don't do a lot of entertaining, it just sits in the dining room, coming into its own once a year! I have tried to give it back to him, now that he is married and has a house to put it in, but he doesn't want it. You can get smaller ones with a warming drawer and veg dishes, that will sit on a sideboard (which begs the question, do people have sideboards any more?).