Great recommendations,
@JackMDS , I was just going to recommend that Asus RT-N12/D1 myself. It's only a 10/100 router, as far as wired ports go, so for higher-speed internet (faster than 100Mbit/sec, most providers now besides DSL), it's not optimal, but it's very versatile, there are like 5+ 3rd-party firmware builds that you can flash on there. (I like AdvancedTomato.)
With 3rd-party firmware, it's capable of QoS, VPN, and ad-blocking for the entire LAN.
That said, I'm currently using one of Asus's higher-end routers, an RT-AC68U family device. Those can be purchased refurbished for under $100 (closer to $80-90 right now), on ebay from several vendors. (*AVOID THE TM-AC68U, those are the variants with T-Mobile branding/firmware "personal cell spot", and they will REVERT to T-Mobile firmware, if you attempt to flash the newest stock Asus firmware to them. Pretty sneaky of Asus.)
The AC1900 / AC1900P is from the same family, and is sometimes cheaper, as the name is less recognizable as an "AC68U" (which is a fairly famous router name).
Those are also very versatile, and very high-performance, they will router gigabit fiber internet connections, and take various 3rd-party firmwares. (Which can be more difficult to flash, once you flash a newer Asus firmware onto them, from the last year or two.)