What is the best receiver to use with the A90J? Budget up to $2k

wasn’t expecting an answer like that! lol 
I’m a novice but willing to learn!

If I don’t use a receiver to hook up speakers and run video sources to the television ... what would I use instead?

I’m truly confused but would really appreciate if you wouldn’t mind expanding on those thoughts :)

Thanks everyone for the replies, I love to see the passion!

So, I just wanted to be clear I’m only using this for watching film/television. 
Listening to music is not a priority for this particular room. 
How does a 2 channel set up work when the output is like Dolby Atmos?

If I’m understanding correctly, the consensus is to only have 2 speakers for the entire home theatre?

...and that putting the money into quality 2 channel will be better than “surround”?

I’m open to the idea for sure — I just never heard of this before (my current gear is 10 years old and that’s probably the last time I thought about it lol)

Thanks again for all the info I’m learning a lot !

PS I only planned to spend $2k on just the receiver... but I’d be open to spending $3-5k to do 2 channel HT... but I don’t have amps or anything. I’d need to sell my current speakers and start from scratch... which is cool if that’s the better way to go. 

Brands/models aside, what all equipment would I need? (Any additional resources you could offer so I can educate myself more would also be appreciated!)