This seems as good an opportunity to rant about how people normally go on about “bottlenecks” as any.
tl;dr don’t worry about “pairing” a given CPU with a given GPU, don’t care about “balance”, don’t just get a low/mid end GPU because the 1700 is decidedly midrange these days. That’s what people on reddit will tell you to do, but they’re wrong.
The CPU does not care about what resolution you play. Whether you play at 1080p, 720p, 4K, the load put on the CPU is no different. Therefore what I would do is to get a baseline for how your CPU actually performs in the games that you play by turning resolution down to like 720 or 540p or something. This will tell you what your CPU is actually capable of.
I’d then look at online benchmarks (GamersNexus are very good) of GPUs, and I would look at the resolutions you want to play it. You said that’s 1080p, so I would look at 1080p benchmarks and I would look at something that’s in the ballpark of what your CPU is capable of – or maybe something a little higher if you want to make sure you have some overhead left over for more graphically demanding games in the future. If you are limited to 1080p 60 fps gaming by your monitor, then good news this pushes the amount you need to spend on GPUs down even further because there’s really no need to buy a graphics card that can do much more than this outside of just wanting overhead for future games.
You mention saving up for a 4K 60 TV in the future, so if you want to spend more money in the short term but save money in the long term you could get a GPU that’s capable of 4K 60fps gaming now (without even looking at benchmarks that’s realistically just the 6800 XT/6900 XT or 3080/Ti/3090), but that would be massive overkill until such a time as you buy the TV. (Having said that, both AMD and Nvidia have super sampling capabilities where you can render the game at a higher resolution and then downsample it to 1080p, giving you the highest quality type of antialiasing available, so if you do decide to do this you can still make use of that graphics card while you’re saving up to move to 4K).