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for minnows there is :
Minnow power Discord
Smart media group ( here are many servers that merged into one )
Minnowbooster of course too :D
Steem plus is a chrome extenstion that is very usefull
Steemworld.org/@calisthenox will show you all the statistics future payouts that you need to watch where are you at :D

these are groups that are pretty active where I'm active too.
https://steembottracker.com/ is a good tool to watch all bots

and last but not least I just started one too where I want to connect with other steem users and help them get around.
My discord we are like 3 right now so. Im sure I have time :D

thanks for your support! :)