It's the Citi Double Cash CC.
(1% when you purchase and 1% when you pay your bill for a total of 2%).
The 2% equates to almost $300 in points for the year (12 monthly payments).
there is no way to make this profitable.
Unless you can find some way to get someone else to eat the CC charges, it will be very difficult to get enough margin on this to make it worthwhile.
Promotion spend targets usually can get you 10-20% back, which
could be profitable, you simply need to get them at the right times.
Alternatively, getting a 0% card for 12-18 months might also be feasible. But this is really putting off today's costs and hoping that you get some extra gains in the market to make up for it when the amount comes due. Again, viability depends on the market swinging your way over the mid term aka decent chance, not a sure thing, and definitely additional headache and risk if things go poorly. Sustainability over 2-3 promotions might really net you ahead, however rolling CC debt in to another 0% promotion is rarely fee free, although there might be one or two cards that have this which will let you delay paying the piper. But after 12-24 months of rent buildup coming due, that's definitely not play-money you're handling...