better-trading VS MercuryTrade-Community-Fork

I use https://github.com/exile-center/better-trading which had the functionality to collapse listings before the main site. It has a count of how many similar listings a person has, so it's what you're looking for. It's a little worse than the trade site one, since you have to individually load each listing, and each 'load' step only fetches 10 individual listings.

Play around in craftofexile.com to know what can roll on each slot type. Pick each of the stats you want and figure out how much you would like that stat on that piece. Then create a weighted search on the trade site to find upgrades. Check for bench-craftable bases too, by adding "# empty prefix/suffix modifiers" to your search. Save your search strings so you can come back and refine them later to save time (there's even this chrome extension to do this and more for you https://github.com/exile-center/better-trading).

This one was abandoned for FF

Browser Extensions: Fuzzy Search, Better Trading

There is popular extension Better Trading (https://github.com/exile-center/better-trading/issues). I recommend creating issue/PR there.

found out about this earlier in the league. add this extension to chrome then you can have your special map searches in a folder saved/bookmarked for even more easier access.

https://github.com/exile-center/better-trading/blob/master/README.md#why-not-in-firefox-

There's a chrome extension that does it automatically too off of poe.ninja data. I just round up a bit and no one's declined me yet

if you trade a LOT, then you might benefit from a dedicated trade manager macro/app like Mercury Trade Community Fork.

[https://github.com/morph21/mercurytrade-community-fork/releases/lateest

If you liked Slimtrade, you could test MercuryTrade Community Fork.

Next, thing: trade. Trade is a big part of the game, and to access you will want to be playing in a Trade league (not SSF - Solo Self Found). Here are the resources you will need to use the trade system: https://poe.ninja/challenge/currency is the "price-checking" tool for currency exchange rates and pricing unique items. (There is no way to reliably price rare items for a new player, unless you know all builds, all item affixes, all crafting mechanics and what is popular at the moment). Although there is almost 50 different currencies (you will want to memorize those), don't let that fool you - the basic "dollars" is the Chaos Orb. Everything you will trade to and from will have to be exchanged into Chaos Orbs. Hundred dollar bills are the "Exalted Orbs", and then "ten thousand dollar bill" is the Mirror of Kalandra. You will need Awakened PoE Trade (https://github.com/SnosMe/awakened-poe-trade), an overlay for the game that lets you quickly check prices of items in-game. Do not attempt to trade without a trade overlay, or you will get assblasted and have a terrible time. https://www.pathofexile.com/trade/ is the official search API, that lets you search for items based on a set of criteria. You will be using it constantly to set up alerts on items you are interested in to snipe, or to quickly search an over-priced piece of gear if you are in a rush. The only way to trade is to whisper another player with the information about the item you are interested in and wait for them to respond. It's all done through the in-game chat-window based on text messages. There is no other form of support for trading in this game. That is why we need Awakened PoE Trade, and this next piece of equipment: https://github.com/Morph21/MercuryTrade-Community-Fork will help you manage trades in-game.

MercuryTrade Community Fork may also work well for you.