New to this hobby please help me

Welcome to the madness.  Keep in mind, this hobby doesn't necessarily have a destination, it's a journey that can last for many years to decades.  

Have fun and don't stress about getting "the perfect system" on day 1.  That doesn't exist.

I second the idea of dealing with Crutchfield. They are great to deal with, offer a free return policy (60 day?), have fair prices, a wide variety of good brands of speakers like Klipsch, Revel, Mofi, Elac, Dali, Focal, Kef, Sonus Faber. They also often have open box great deals. 
 

What really matters is how the speakers sound to you in your room w/ your equipment. 

@thecarpathian ; I don't know about being handsome these days. I have noticed that the pics of myself from 40 years ago (which I didn't like then) are looking pretty good nowadays!

@wizzard I got into 2 channel via Home Theater.  My set up still does double duty but my 2 channel set up today doesn't share anything but the speakers & room, separate amp, pre, streamer, DAC.  I'll pass along learnings I've had along the way, hopefully it helps.

The biggest is you can have a space that does both at a very high level, I've heard over and over you can't, if you are serious about 2 channel, a separate set up / room needed, that's baloney, sharing the space, some equipment is more than doable.  

Speakers will have the biggest impact on your sound, how they interact with your room and electronics is paramount.  Forget everything else and focus on what sounds good to you, the sound signature you like, don't worry about speaker matching your other HT speakers, don't worry about the electronics needed until you have narrowed down knowing the sound you are chasing.  

AVR's / Receivers, even really high end ones, I've got an Anthem MRX-1140, I had a Marantz SR7012 prior won't match either a dedicated integrated amp for 2 channel or external amp / pre.  Pick your speakers, don't let your receiver limit what you chose, upgrade your Amp and or get an integrated with HT Bypass down the road.  

Used, Used, Used gear unless you are getting a screaming deal on a demo or heavy discount on new.  If you have 4 k to spend, you can likely get both speakers and a decent amp / integrated used for 4 k.  Even better though, buy used speakers once you know what you want, then save up to upgrade the amp. 

Your Home Theater set up doesn't need as much attention as your 2 channel, with room correction, you can blend in towers that aren't voiced the same as your HT speakers, your AVR / Receiver, especially with the addition of an amp / integrated to power the front channels is more than capable.  If you want in on 2 channel, focus on the speakers, build your system around those, incorporating your HT into the equation, not the other way around.  

I'd find the speakers, take your time, find your sound signature, place them in your system.  I think your receiver has the ability to act as a pre while bypassing it's internal processing, if it does, I'd then buy an amp that matches what the speaker need, use your receiver as a pre until you can upgrade to a 2 channel pre that has HT Bypass.  Or, once you have your speakers, find an integrated with HT Bypass, that will give you a separate pre / amplification but also integrate into your HT system, allowing you to use a separate amp for the fronts while watching movies, this will also elevate your HT set up as well. 

Speakers are subjective, like everything else in this hobby but a place to start is understanding Brands / Designs general sound signatures, not every speaker design will be great in an HT set up, Single driver, open baffle, electrostatic speakers will be harder to integrate and likely lead to some level of compromise in your HT system but the vast majority of speakers will work well for HT.  

Speaker brands to  read up on:

Well know brands:

Focal - Great speakers, build, design are top notch, they tend to chase a HiFi, detailed sound with higher end beryllium tweeters, people love them or can find them fatiguing

B&W - One of the OG's of HiFi speakers, higher end models with diamond tweeters are very detailed but again, some can find them fatiguing

Sonus Faber - Italian made, great speakers, tend to be warmer sounding, detailed but easier to listen to

JBL - Come out with remakes of some of their vintage classics

Martin Logan - Famous for Electrostatic Speakers 

Smaller brands to look at Fritz, Legacy, ATC, Alta Audio, Joseph Audio, Tyler Audio, Omega, Tekton (polarizing brand) and others.  Many of these smaller companies are available to talk to, they'll customize speakers for you, direct you to speakers in their line that line up with what you are looking for sound wise and from an application standpoint. 

Tweeter types - Silk Dome, easier to listen to, smoother sounding, Metal Tweeters tend to be more detailed but some can find them harsh, Ribbon / AMT tweeters can give more of a electrostatic type sound quality but implementation is key

Horn Tweeter can be very detailed and extremely efficient - think Klipsh 

I'd work on finding a way to listen to brands outside the big ones at Hi-Fi stores, many stores tend to carry Focal, KEF, Paradigm, B&W, Martin Logan, nothing wrong with any of these brands / speakers but they are all similar, like comparing a Audi, BMW and Mercedes, comparable models, they are all chasing the same audience, they have differences but tend to somewhat chase the same type of sound.  You might want American Muscle, a Mustang GT or Dodge Charger w/Hemi, if that's what you are chasing, the Audi, BMW or Mercedes aren't going to give that to you.  

Good Luck, let us know how things are going in the search. 

Just an alternative suggestion. I have a Golden Ear Super Array sound bar (4 feet long) that has the same ribbon tweeters as the T66 and some small mids.  Sounds great with a sub because the sound bar has no bass whatsoever.  The bar (great for movie placement) is only $1200 new on Crutchfield.  Could be a starer?