Welcome aboard! I never was much of a cigar smoker myself, so I can't really help. Izan above has likely nailed it.
The last time I read the making tobacco extract posts here some years ago, folk did seem to have success extracting flavour from cigars - that might be worth researching, though it's not a quick process.
I tried it with a favourite pipe tobacco of mine - the results were evil.
Mind too that with vaping it'll never be the same as smoking cigars; most people that stick with vaping quickly go onto other flavours than tobacco.
Welcome again!