Suggestions for rca connector - diy interconnects


Been making my own cables for a while now (speaker, coax, instrument xlr). I’m now starting to do my own rca interconnects but am not well versed in the connectors that exist out there. I’m wondering if there are other DIY’ers that have favorites when it comes to rca connectors. I don’t really need anything extravagant but I am looking for good quality and something easy to work with. I have been down the WBT knock off route and it was a less than desirable experience. Any help would be greatly appreciated. 
Thanks! -Dave 
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All suggestions are great, Swithcraft  is really good while you playing with designs. It's no slacker even compared to more expensive rca's listed above.  You can pick them up from B and H photo dirt cheap. I use to buy a bag full, easy on the wallet. Vampire's are very nice too for the money if you like to tighten down you rca's.
KLE Harmony series.  They go from cheap to around a hundred bucks for the best.
Aeco produce connectors that are made up of different metals and different coatings, with a Solid Silver Pin being the Top Model in the range.

Zavfino produce a connector with a OCC Pin.

OCC Wire is a type that will probably turn up in your investigations.
Neutrik Profi ….   Spring loaded ground contact: retractable element with separate wedge contacts which keeps the shell in the front position when engaged thus also providing a direct and strictly coaxial electrical connection from the socket via the shell to the cable shield

https://www.neutrik.com/en/neutrik/products/phono-rca-connectors/profi-cable-connectors


https://audiokarma.org/forums/index.php?threads/rca-phono-plugs-neutrik-vs-wbt.675201/