Honestly, with a $200 budget, ur best bet is to split it between a solid headset and maybe one utility accessory rather than a pro controller, since a DualSense Edge Wireless Controller eats the whole budget by itself. Here are my picks for a technical edge:
1. Sony Pulse Elite Wireless Headset - This is basically the best bang for ur buck right now. It uses planar magnetic drivers (usually found in high-end audiophile gear) so the detail is insane for about 150 bucks.
2. DualSense Charging Station - Sounds basic, but keeping pads topped off is essential.
3. If you want a controller upgrade on the cheap, grab some KontrolFreek Performance Thumbsticks. They add height for better precision without the huge price tag. Their isn't much point in getting a cheap third-party controller that lacks the haptics of the official ones. Stick to the stock pad for now and invest in the sound, it makes a huge difference (at least thats what worked for me)!