it really depends on your budget $?
what you really want to do with it?
how much rms watts output?
multi selection between various devices or only a few devices?
built in tuner & extras you may never need?
number of speakers to connect 5.1 7.1 7.2 8.1 etc.
if you can answer some of these questions 1st then searching the forums for brands etc should be alot easier.
harmon kardon, nad, bose, pioneer, yamaha, lg, panasonic etc.
pick a budget say $200-500 & see what you can get then tick off what you really want & think you need.
take your time dont be pressured into buying something on the spot unless you know it can be beaten in price
(hagle for a lower price $100's of dollars cheaper than they are trying to sell right now in the stores).
look at the expensive ones in stores 1st then work you way down to you sweet spot of features & or costs.
these are my thoughts when I was looking a while back still have not bought anything.
but now I am considering a sound bar & sub woofer for my tv & media player.
no rush but I have only just considered this recently seeing what I can get for under au$300,
otherwise is au$500-700 for a receiver.