Question about a set up

Are you planning on eventually building a home theater or just 2-channel stereo w/ a subwoofer? I’d suggest these components that are priced similarly and IMHO you’ll get much better overall performance…
https://www.accessories4less.com/make-a-store/item/yamrxa780bl-rb/yamaha-rx-a780-7.2-ch-x-95-watts-a/v-receiver/1.html

http://v2.stereotimes.com/post/lsa-signature-50-loudspeakers-by-terry-london/

https://www.monoprice.com/product?p_id=41498

https://www.headfonia.com/drop-audio-technica-carbon-vta-review/

If you need speaker stands I’d recommend these as they can be filled with sand, lead shot, etc. to improve stability and speaker performance.
https://www.monoprice.com/product?p_id=24794

The Yamaha receiver is much more reliable and performs as well or better than the Onkyo. The speakers — I’ll let the review speak for itself. The sub is on another level entirely than any of the ones you listed. The turntable offers meaningful upgrades over the model you listed (tonearm, etc.) and I think looks much better with its dark wood finish, but it doesn’t do Bluetooth that I wouldn’t recommend if sound quality is important to you. Put all this together and I think you’ll be thrilled with what you hear. I can also recommend speaker cables and interconnects if needed as well. Hope this helps, and best of luck.

Going through your options my recommendations would only cost $200 more than your Best Buy options and result in a much better system IMHO. Plus, when everything I recommended can be delivered to your door for little/no cost there’s no reason you need to be wedded to Best Buy to purchase everything. So, for the turntable here’s the comparable BB turntable, but for only $50 more my recommendation gives you both a better tonearm and cartridge, which is a lot for 50 bucks.
https://www.bestbuy.com/site/audio-technica-at-lpw30tk-manual-belt-drive-turntable-teak/6474286.p?skuId=6474286

https://drop.com/buy/drop-audio-technica-carbon-vta-turntable

As for the AVR, I’d stick with Yamaha because I’ve compared it directly to Denon and Yammy just sounds better (I worked for Magnolia so had access to do extensive comparisons). The RX-V4A would be my choice of your options, but at BB it’s only $50 cheaper than my recommendation that offers more power and comes from the upscale Aventage line that uses higher quality parts and design. Also, it offers front L/R preamp outs if you ever want to significantly improve performance by adding a better amp or, even better, an integrated stereo amp.

For the speakers, you’re just getting much more speaker for only $100 more with the LSA speakers. They weigh 37% more and go much deeper in bass than the Q350.

So, all things considered I’d stick with my original recommendations given all the above advantages for not much more $$$. Just my $0.02 FWIW.

For speaker cables I think these are a no-brainer choice.  A respected member here compared these to much pricier cables and these performed very well especially given their very affordable price…
https://www.amazon.com/dp/B06ZZ5HCTM?ref=ppx_yo2ov_dt_b_product_details&amp&th=1

For interconnects here are some at various price points listed in order of preference…
https://www.lavricables.com/cables/reference-silver-rca-interconnects/

https://www.usaudiomart.com/details/649202094-dh-labs-bl1-series-ii-interconnects-with-neutrik-rca-plugs-2ft-or-3ft-pair/

https://www.cullencable.com/copper-series-interconnect/

https://www.monoprice.com/product?p_id=18534

Hope this helps, and congrats on the turntable!