I use solar panels for mining and I can tell you with boldness that ASIC miners are bad news for solar panels unless you are rich, why? They consume too much electricity that's why, here are best cards for solar panels

1. Gtx1660 family ( normal, super, ti) (from 50watt to 70watts)
2. Radeon 6600XT (from 50-60watt)
3. RX5500XT (55watt)
4. RTX 3060Ti (120watt)