Hi Jag,
A pad/pant system seems ideal in your situation, where you wear a highly absorbent incontinence pad (not a menstrual one) beneath a special brief-like mesh or stretch pant. When you visit the bathroom, you'll have the option of pulling down the pant and switching in a new pad, or otherwise voiding like normal.
It will feel a bit like a diaper, but it won't necessarily look like one... So if that is important, you'll need to try another.
The best disposable pull-up on the market, in my mind, is the Abena Abri-Flex *3. It has superior absorption as well as, most importantly, a working standing leak guard. However, it is a bit SAP-heavy and will be prone to leakage if you flood after the first wetting. I could usually flood it twice, and then a small third if I lay on my back, but I would have to trickle from then on. Teaching your body to "go" in tiny amounts will "go" a long way to making any diaper last longer.
Another option may be to layer a cloth booster into the Tena Super Stretch you already own. It will add a small bit of volume between your legs, there's no getting around it, but it will not tear. Having the booster running along the length of the diaper will also aid in fluid distribution.
Lastly, and I know this will be unpopular!, but if you enjoy flooding and don't mind making multiple trips to the bathroom, a cheap drugstore diaper might be able to satisfy. Choices such as CVS fitted briefs, or Walgreens Certainty. They're all essentially the same product, and there may be an overseas equivalent if you do not live in the USA.
Flood it, dump it, strap on a new one.
You could also look into a