I don't know if you used steempeak before on the steem chain, but they have migrated to Hive, also, slight differences in the front ends, but pretty much the same. peakd.com. If you had a steemit account the the same name/passwords to use peakd.com.

Communities would take a long time to fill you in on.

Bid bots are mostly gone, but I am sure they will be rampaging on steem again soon.

@ionomy is a simple to use small exchange type thing. More info on their page since you seem to be a trader they are doing air drops, so may be of benefit to you.

No steemworld equivalent on Hive chain.

• @yourname is steemdb equivalent
• https://hiveblocks.com/@yourname is the steemd equivalent

Not sure what all else you need, front end wise I like the look and feel of peakd, eSteem is on Hive also, and I am not sure of the others, Hive is only half way through the third week, so a lot is still be settled and transitioned.

If you missed all the WHY, plenty of people to fill you in on that, suffice it to say it involves politics and personalities.