Analogies can be helpful if they're straightforward and accurate, and the company you're comparing yourself to is well-known and has a $1B+ market cap (at minimum). Beware of using analogies that are either overly convoluted or inaccurate. As I suggest in this guide, you can test out whether or not the analogy works by trying it out on a couple people that know nothing about your business and asking them to explain back to you what your company does.
“Uber for..” “AirBnb combined with..”