@rsilk - Welcome. Business/community-grade gear will definitely give you a network that runs more like an appliance and less like a toy.
First, a cabling question: you didn't actually say it, but I presume the house is fully-wired with ethernet? I'll proceed under that assumption in this post.
Next, the overall picture. Since you're a self-proclaimed novice (nothing wrong with that, by the way), you may find it advantageous to look at something like Ubiquiti UniFi, whose primary value is allowing you to setup and administer the router, switch(es) and wifi APs via a
single software control panel, instead of two or more separate control planes. This drastically simplifies configuration and increases the chance of network-wide items just working (for example: making separate sub-networks for private/guest/IoT). UniFi may not be as performant or as absolutely stable as certain standalone alternative pieces (pfSense, Juniper and Ruckus included), but as a whole system, the ease-of-admin may represent enough of a value to make it a better overall choice, at least for your first foray into this type of gear. You'll have to do your research there, and determine. If it did look like a fit, an example stack would be the following: USG or Dream Machine (if it's stable enough by now), US-8-60W switch, CloudKey Gen2 controller (if you went USG instead of Dream Machine), and however many AC LITE, NanoHD or FlexHD APs. There's also TP-Link Omada, which is like a "poor man's UniFi", giving roughly the same quality experience for your endpoints (better in some cases), albeit with less hardware diversity and potentially shorter software support.
If for whatever reason you were interested in separately-controlled components, I have some guidance there, as well:
Router/Firewall - Any of what you mentioned will work, although I would probably err on the side of simplicity this time around -- the likes of a Cisco RV340 or Firewalla Gold -- as opposed to a Ubiquiti EdgeRouter (which is also being phased out soon in favor of the UISP series), or even pfSense, and definitely not Mikrotik. For just the basics, an RV340 will work well. If you did ever want to run processor-heavy things like VPN, QoS, security filtering, etc, and do so at close-to gigabit speed or beyond, the Firewalla Gold would be the better choice (underneath, it's x86, or PC-class, hardware). Firewalla is subscription-less, and Cisco RV out-of-the-box is as well, although it does have optional premium licensing, but you likely wouldn't need it (it gives you more advanced VPN and more simultaneous VPN tunnels).
Switching - As awesome as Juniper is (it happens to be my favorite), I would probably steer you away. Although JunOS has a basic web GUI, it's really meant to be configured via command line interface (CLI) by someone with at least intermediate-level knowledge (else a pro), so unless you wanted to invest the time and/or trial-and-error into learning, I would suggest a simpler, more GUI-based managed PoE switch, such as a Cisco SG/CBS or HPE OfficeConnect series, or TP-Link or Netgear if you have to go cheaper. Also, you may hear others mention Layer 3 versus Layer 2 switch capabilities, but if you ended up with an L2 switch, no big deal, as the differences between the two likely won't ever be significant enough to require that you buy an L3 switch right now.
Wifi - Ruckus is absolutely solid, and Unleashed makes it easy to administrate and even more reliable. R500's are cheap on eBay, but being end-of-support, you won't get any more security or feature updates on them, so if that's a sensitive point, it may be better to pay the premium for R510's or 610's (or even newer series), off eBay or otherwise. Also, to correct
@coxhaus and others, the R5-series is more their mid-tier AP; the R3-series is the entry level. Versus end-of-sale Cisco WAP, Ruckus offers a fully-comprehensive control plane and better link-layer quality, especially in high-interference and/or client density. But that said, WAP has been replaced by Cisco CBW, which from a software standpoint is a much more modern, solid product, and a better direct equivalent to Ruckus Unleashed. CBW is actually Aironet 1800 series hardware running a stripped-down version of Mobility Express, Cisco's embedded enterprise wifi controller, and although current CBW models lacks a few premium items (namely multi-gig ports), it's a better product overall than WAP, even at first release. So unless you have WAP-series stuff already deployed, I would avoid it in favor of CBW. As for other options, there's also Aruba Instant On (both APs and switches), or UniFi or Omada again for just wifi and switches. I like Aruba, Ruckus or Cisco CBW, though, because, among other reasons, they have embedded controllers (built into the AP firmware), so need to setup and depend on yet another single point of failure in the external controller, and either product can be directly web-controlled or run standalone, if desired.
TL;DR - If you do have ethernet throughout the house and
really wanted to keep things simple hardware-wise, you could go with a Cisco RV345P router+PoE-switch and either Ruckus or Cisco CBW APs -- that's it, just two hardware layers for a rock-solid network.
I hope some of that helps to guide you. Happy to expand more if needed.