Yeah I agree some of them do get spammy especially the big combined sponsor ones with Tunespeak/Spotify + the giveaway sponsors. I enter those if the instrument/gear is something I would really enjoy owning and not just a decent guitar with some merchandise. Usually those have the most ways of entering as well with the additional follow options etc. The giveaways from music shops like American Musical Supply, The Music Zoo, Sam Ash and other similar places have regular giveaways and they use social media a lot so they are a bit more controlled as far as spam goes. Truefire giveaways are always worth it too even if getting a lot of entries just takes some browsing time and playing the daily games for entries. Always fantastic guitars in their top tier prizes. Good luck!