Participating in contests is a great way to progress on Hive. Here is a non-exhaustive list of interesting contests on Hive. Feel free to drop a link to yours in the comments if I missed it.
Haiku contests
Poetry
@bananafish/posts?filter=haikucontest
ZapFic
MicroFiction Free Writing Contest
@felt.buzz/posts?filter=zapfic
Qurator's: Hive Top Chef!
Cooking contest
@qurator/posts?filter=hivetopchef
Cook It with 
Weekly cooking contest
@oredebby/cook-it-with-oredebby-week-10
Pinky And Spiky Drawing Contest
Drawings about Pinky and Spiky, weekly.
@organduo/posts?filter=contest
DTIYS Challenge
Create your original drawing using the style you prefer and post it online usting the hash tag #dtiys
created/hive-154202
Splinterlands Art Contest
@splinterlands/posts?filter=contest
Digital Drawing Contest
@dzoji/posts?filter=contest
Gaugan AI drawing contest
https://peakd.com/@steemean?filter=contest
Pixelart Contest
Digital drawing contest
@kristyglas/posts?filter=contest
Manipulation Station
Photo manipulation contest
@hive-122516/posts
Create That Look
Photo Filters And Effect Contest
@bliss11/posts?filter=createthatlook
Let's make a collage
@shaka/posts?filter=letsmakeacollage
PhotoBomb Challenge
@fibra59/posts?filter=photobombchallenge
Around the World
Travel photography contest, Actifit friendly. Use #aroundtheworld tag. Every week.
@bucipuci/posts?filter=aroundworld
Barski's photo contests
Every day
@barski/posts?filter=contest
Photophile photography contests
3 times a week (macro/travel/sunset)
@photophile/posts?filter=contest
Still Life Photo Contest
Closed, waiting for the next one...
@phototoken/posts?filter=contest
Shadow photography contests
@melinda010100/posts?filter=shadowphoto
ColorChallenge
Colorful photography contests
created/hive-122101
Qurator's Photo Quest
Weekly theme contest
@qurator/posts?filter=photoquest
Seaphotography Contest
@marc-allaria/posts?filter=contest
Photo52 Photo contest
@photo52/posts?filter=contest
Monomad Challenge BW photo
@monochromes/posts
Alphabet Hunt
Pictures about a word starting with letter
@barbara-orenya/posts?filter=alphabethunt
Amazing Nature photo contest
@adalger/posts?filter=amazingnature
Love the clouds
@tobetada/posts?filter=lovetheclouds
PhotoFeed - Photo contest
Participate by using the tag #Photofeed or #hive-153349.
@photofeed/posts?filter=contest
Portrait Contest
@portraitcontest/posts
The Redfish Rally - The Terminal
A rally for becoming a minnow
@theterminal/posts
@justclickindiva/posts?filter=contest
Hive Creative Contest - PowerHouseCreatives
This contest genre will vary from drawing challenges, photo prompts, writing challenge and many more
@zord189/posts?filter=contest
Model of the week/month
Beauty contest
@instagram-models/posts?filter=contest
BeerSaturday contests
Tell a story about a beer and take a picture of it
https://peakd.com/@detlev?filter=beersaturday
Luck games
Pick a number, color...
@hiveslotgames/posts?filter=contest
Guess again
Win Spinterland cards
@road2horizon/posts?filter=contest
MLB Daily Pick'em
Predict baseball results
@fuentesjo3006/posts?filter=contest
Crypto contests
Predictions on prices
@maarnio/posts?filter=contest
