I've previously sold a lot of knives (many in groups) on eBay that I purchased earlier in my "career" as a collector. Most of them were cheap Kershaws & CRKTs. I had a lot of success in selling them for a reasonable amount of $ there.
Until recently, you had to report gross sales on eBay in the amount of $2,500 in 2025 & $600 in 2026 but these limits on longer apply. The new limit is $20K gross sales & 200 transactions which is what I think it use to be. See:
https://www.webgility.com/blog/ebay-tax-reporting
I was avoiding selling anything else on eBay because of the previously low limits. I tried to sell a few here on The Exchange with absolutely no interest. So, I gave up trying to do that too.
I still have a few knives that I'd like to sell & I'll probably list them on eBay rather than here because I can still net as much or more there than I can here, despite the fees. Selling on eBay also is more convenient IMO because it incorporates PayPal (or other forms of credit card payment) & also allows you to print discounted USPS labels for shipping.
So, if you've been putting off selling on eBay, now may be the time to reconsider it.