BTC strategy recommendation

Looking for balance transfer card (someone who gives high limits) recommendations which report from either experian/equifax as my application on my journey from going from the 500's to hopefully 800s someday. My plan is to get as much as possible available low interest credit to then transfer all my high interest credit where I plan to pay it off over next 1.5 years. Just recently, NFCU gave me a second platinum card for $16,700 (0.99% BTC for one year terms, no fees) which I plan to eventually use when i get my ducks in a row. Also, just afterwards, I got a CLI increase on my discover card (14,500 to 17500). This upcoming May 2nd, I'm eligible to apply for CLI with my first NFCU platinum card, which I'm hoping (if I can get something decent) it will give me a bump that will further drive down my utilization score, thus improving my FICO. Navy Federal has been an angle to me, I think i might have been forced to declare bankruptcy if it weren't for them. Current CC Cards: Capital one quicksilver (27.65%) 0 /5,000 Capital quick one (27.65%) 0 /2,300 Venture (22.74%) 23,226 /30,000 Chase (27.5%) 0 /10,000 Citi (0% until July) 1,980 /3,000 Discover (16.74%) 10,513 /17,500 NFCU visa (0.99% until June) 1,820 /7,500 NFCU visa 0.99% offer 1 year 0 /16,700 barclay (closed, apr 27.74%) 7,184 /8,250 Not counting Barclay I have $37,539 in unsecured credit card debt and 92,000 in available credit (Barclay isn't showing in those categories now but it's still high interest that's piling up). Aggregate Utilization (when new card finally gets updated on reports) = 40.8% Just a couple weeks ago, my aggregate utilization was above 65%. My Experian hasn't been updated w/ the newly utilization data yet, FICO8 currently is at 696. I'm assuming my FICO will go up even with the new inquiry once it shows my utilization is under 50% now. I might be able to get it below 30% if I can get a few CLI's and another card/etc. I also got my venture card just couple days ago under 79% individual utilization, not sure if that counts for anything though. I have the money to get CTI under 50% individual utilization but it's under a 0% promo so not sure its worth it. Looking for advice on next steps. Guessing I wait until Experian gets updated before I apply for another card. Thanks again for all the great insight!!!