I believe literary contests should be entered in moderation partly because these places have a reading/submission fees and those fees add up.   If you’re going send submissions pick ones that have a durable reputation and have been around for a while.  Recently, an article in Poets & Writers makes reference to the journals that are on literary agents radar.  Glimmer Train, Ploughshares, Tin House, Fence and N+1 received high marks. LA Carlson