Reddit mentions of Monitor Audio Bronze Series 5 2 1/2 Way Floorstanding Speaker - Each - Black Oak

Even bookshelf speakers with a 4 inch driver will go down to 60hz or 70hz. Those with 5 inch drivers will often go to 45hz or 50hz.

Set the subwoofer to handle everything from just above the lower rating on the bookshelf and you are good to go. Most subs are rated from 100hz and down but it is better to set them as low as possible while still covering the transition from main speakers to the sub.

There are a couple of pretty good towers in that price range too

https://www.amazon.com/Monitor-Audio-Bronze-Floorstanding-Speaker/dp/B00XW22VY6/

https://rbhsound.com/bstock-r55ti.php

https://www.amazon.com/Polk-Audio-Signature-S55-American/dp/B01LWB2LIX/

https://www.amazon.com/ELAC-Debut-Tower-Speakers-Each/dp/B014GSEPY8/

https://www.amazon.com/Emotiva-Audio-T1-Tower-Speakers/dp/B01MQ6CKYU/

I'm not sure $800 is enough budget for tower speakers unless you would buy Klipsch or Andrew Jones Pioneer. Most good tower speakers which wouldn't really need a sub and would be audiophile quality are something like $550 each.

I would get bookshelves and a subwoofer, and you can upgrade them in the future if you wish. For the bookshelves, do something like this:

KEF Q300B Bookshelf Loudspeakers - Black Ash (Pair) https://www.amazon.com/dp/B00CE3LG9U/ref=cm_sw_r_cp_api_xwLDzbT9SB2WF

Or, slightly cheaper:

Klipsch RP-150M Bookshelf Speaker - Cherry (Pair) https://www.amazon.com/dp/B00RXHEH8Y/ref=cm_sw_r_cp_api_LHLDzb4SG7WJF

Wharfedale - Diamond 220 (Walnut) https://www.amazon.com/dp/B00P15KDCO/ref=cm_sw_r_cp_api_9RLDzbZ86871K

DALI - ZENSOR 1 - Bookshelf Speakers in Light Walnut (Pair) https://www.amazon.com/dp/B0057X8796/ref=cm_sw_r_cp_api_VSLDzbP0MK16M

And for the sub:

SVS SB-1000 – 12”, 300 Watt DSP Controlled, Sealed Box Subwoofer (Black Ash) https://www.amazon.com/dp/B00AF88C0M/ref=cm_sw_r_cp_api_LDLDzbRASPMQT

This puts you over budget by $100 if you go with the KEFs and $35 if you go Klipsch (which would be significantly louder, more V shaped sound (bass and treble, less mids), but less detailed). I haven't heard the wharfedales or dalis in person so I can't comment on their sound. So, I would start with just the speakers and then decide if you want a sub or not, if you do, continue saving.

Edit: some tower options that are less than $800:

Klipsch RP-250F Floorstanding Speaker - Ebony (Each) https://www.amazon.com/dp/B00S2N4BDO/ref=cm_sw_r_cp_api_.LLDzbFH56BVV

Monitor Audio Bronze Series 5 2 1/2 Way Floorstanding Speaker - Each - Black Oak https://www.amazon.com/dp/B00XW22VY6/ref=cm_sw_r_cp_api_cQLDzb7WQ7KE9

ELAC - Debut F5 Tower Speakers (Each) https://www.amazon.com/dp/B014GSEPY8/ref=cm_sw_r_cp_api_TQLDzbEY4CHAQ

Sure you can use that receiver, it's pretty decent.

With your budget it's not easy to get a really good sub, so I'd suggest a pair of towers: they won't be able to reach the lowest sub-bass notes, but most of the music you listen to doesn't have a lot of those.

If you don't mind the aesthetics, a pair of Emotiva T1s (imported or locally sourced - use coupon AIRMOTIV for a 10% discount) is your best bet. Otherwise you can get a pair of Monitor Audio Bronze 5s or, 2xElac F5s, but if you can get to $1100, I'd get the larger 2xF6s.

An alternative route could be to get some cheaper standmounters such as the Diamond 220s or Elac B6s and save up to get an SVS SB-2000 later on.