after a little looking, this skull an co adapter does support LDAC, AAC and APTX LL
https://www.amazon.com/Skull-Co-AudioStick-Bluetooth-Transmitter/dp/B08DZRJD2N
Unfortunately the only reputable company making APTX LL earbuds is Sennheiser, so your options are limited;
https://www.amazon.com/Sennheiser-CX-350BT-Bluetooth-Headphone/dp/B083W7PVWZ/
though these razer and HTC earbuds advertise 45ms and 60ms latencies with AAC. Not sure how much I trust that;
https://www.amazon.com/dp/B099LZ2BGB
https://www.amazon.com/HTC-Bluetooth-Headphones-Cancelling-Mic-Black/dp/B0B8H66KV2/