Here my gpus:

2X GeForce GTX 1080
1X Radeon RX 6600 XT
2X GeForce RTX 3060 Ti
3X GeForce RTX 3070 Ti
2X Radeon RX 6800 XT
1X Radeon RX 6700 XT

and i'm planning to add the 12th, but i'm confused about taking another 3070 Ti or 6800 XT or 6700 XT.
Considering i want to mine coins other than ETH, such as Raven, Sero, Conflux, Aion, Erg and in these coin's algos, the LHR limit of my five nvidia gpus, should not be active, wich coins/pools do you recommand me to move on?