Knee Sleeves 7mm (1 Pair) - High Performance Knee Sleeve Support For Weight Lifting, Cross Training & Powerlifting - Best Knee Wraps & Straps Compression - For Men and Women https://www.amazon.com/dp/B07B461DX9/ref=cm_sw_r_cp_api_glt_fabc_6HCKM709VK9ARMS2HKKS?_encoding=UTF8&psc=1
I have some Iron Bull sleeves. They're solid. I have no tried SBD, but I have $30 I didn't spend.
If you're in the States (and based on your posting time, you're not), I had a pair of Unbreakable Gear sleeves that I liked but they were stiff and not good for crossfit and I shredded them over the course of 6 months.
Go cheap and see if it's worth it. I like these ones.
Knee Sleeves 7mm (1 Pair) - High Performance Knee Sleeve Support For Weight Lifting, Cross Training & Powerlifting - Best Knee Wraps & Straps Compression - For Men and Women https://www.amazon.com/dp/B07B461DX9/ref=cm_sw_r_cp_apan_glt_fabc_QZPTFB74DMQ4ZD8YKPED?_encoding=UTF8&psc=1
I have cheap Iron Bull sleevs.
They won't help with pain or instability. But they do tend to make you feel better.