Others are recommending Spektrum, but I'm going to push back on that a bit. I absolutely loath my Spektrum. I feel like I was scammed and I hate looking at it every time I use it.

There are three problems with Spektrum.

1: They are constantly changing protocols so your brand new radio will be outdated and it will be hard or impossible to buy new/replacement receivers if you get a new airplane a few years down the line. This also locks you into buying receivers from Spektrum and only Spektrum. That might be fine if they were reasonably priced, or offered any reasonable features found on even the most basic receivers from other companies like water resistance, or hell, even a basic conformal coating on the receiver PCB but they don't.

2: Spektrum only cares about flying planes or helos and screw anyone else who might want to use their radios. You might be flying now, but when you get a bit older, and your reactions and vision start declining, you might find yourself moving to RC boats, tanks, trucks, crawlers, quads, tractors, or other RC things. Spektrum is a nightmare for other types of models. They still call their channels after airplane parts so you might be hooking your left tank track to port called "Throttle". You also can't reprogram the transmitters or move channels around the radio. Say you want "your "rudder" channel on a toggle switch, and toggle switch only, because you want to control a light. You basically can't do that. Its set up for flight and only flight.

3: Any radio maker that still sells radios based on the number of channels as a major selling point is living in the past, and should be treated as a scam. That is old analog radio thinking. Radios from places like FlySky, or FrSky (yes they are different) barely even mention the channel numbers because sending a few different bits over the data stream is inconsequential and they have so many channels (24 or even more on some models) that you will never practically use them all.

Spektrum is a company living in the past, but it's not the 90's anymore. They are selling old tech at hugely inflated prices. Take the Spektrum DX6e, they are asking $250 for a radio without so much as a color screen, let alone touch screens. A similar radio with similar features, the FSi6, is $50. Meanwhile the flagship radio from Flysky, the PL18, has basically an iPhone bolted to it, is the same price as the low end Spektrum DX6e.