Making a cracking rig

[dfns]

Thank you. So it looks like 1080 ti or 2080 ti would be nice.

I think it's a kind of investment, so that you should research things and make a decision based on your calculation. I builded a rig last year for 4*3080 and calculated costs for hardware (different CPU sockets, different GPU) and costs for rig running (about 1,5 kW per hour). Then I calculated things for different hash types (my primary target are Windows hashes like NTLM/NTLMv2) and the 3080 was one of the cards with best cost/hashes ratio.
There is also a more actual guideline for rig setup: Password Village Rig setup
Just my opinion.