https://www.hifishark.com/search?q=integrated+amplifier
I always search by when listed, new 1st, to see new, perhaps rare opportunities
then I go back, and sort by price, high 1st, always see what is just over your budget, in case something awesome is just a bit more, I put in $2,300 max in your case
then limit the country, try to find something close enough to pick up.
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once I find anything interesting, search that model or similar models, i.e. little brother, on google outside of hifishark and/or eBay
I looked all over hell to find my wife a 2005 tBird, closest one I found was 3 states away, my friend found one on Craig’s List 2 towns away, identical to the one that got totalled, best price, private, no dealer fees ......