I have taken up cooking while stuck in quarantine and wanted to know if there's an alternative to broiling. I have seen plenty of recipes which recommend broiling but I don't have a broiler. Any alternatives to it? For instance, I found a good pasta recipe that suggests broiling after cooking to melt the cheese. How can I get it done without broiler. Link to the recipe- https://www.youtube.com/watch?v=8cETpXxcAiM 
Adjacent to Johanna's comment on the question:   If you have an oven at all, it likely has some sort of broil or grill function - per the accepted answer to this question, it might be a broiler drawer, rather than a function of the main body of the oven.  Assuming that you do have an oven, I would figure out which of those tools it uses, and then grab a cookie sheet and aluminum foil to simulate broiling, as in this article.  If you have neither an oven, nor a cookie sheet, nor aluminum foil, I'm out of helpful advice, and that torch idea starts to sound a little more appealing.  