Whether you are looking for feedback or just want to share your awesome creations with us, this thread is for you 
I will start the thread off with some of my creations:
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The Pact Primeval: A warlock subclass that turns you into the patron, into the one who makes the deals and tricks others, not the other way around.
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Pact of the Harbinger. A pact boon for mounted warlocks, for dread knights who want to have a Nightmare as their steed.
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The Dreamspawn: A srocerer subclass for adventurers who were dreamed into existence by a Beholder or otherwise are drawing from the powers of these many-eyed menaces.
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Circle of the Volcano: A druid subclass for those who like to unleash the very forces that created the world we live on upon their foes.
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Metal Domain: A cleric domain for all the metalheads among us
I’d be glad to get some feedback on those
PS: Here’s a list of all the homebrew stuff I released so far on D&D Beyond: https://www.dndbeyond.com/forums/dungeons-dragons-discussion/homebrew-house-rules/124900-apocrypha-the-bestiary-of-gods-and-legends