Hi, I don’t know your mod, but I can recommend a DL RTA that has worked well for me.
Hellvape Fat Rabbit Solo 2.
Its advantage is that it is fundamentally a single coil RTA, but it also accepts dual coils. You can choose whether to use it with top or bottom airflow, and I managed to get fine flavors out of it.
You can also find a detailed review of it on Vaperina using the search function, if you are interested.
Then others will also come with their suggestions.
Good Luck!