Yes - your soil needs only nitrogen, and you should be able to find this type of fertilizer at many nurseries or big-box stores.  Look for a large number at the beginning - this is the nitrogen.  The other two numbers should be very small or zero.    You may not need to add compost to your garden, particularly if your soil test shows that it is high in phosphorus.  Compost can increase phosphorus levels.  For detailed information on this topic, see https://extension.umn.edu/yard-and-garden-news/how-much-compost-should-you-apply-your-garden-spring