70ah battery for my Pajero, any advice on what to look for?

So I've been driving my Pajero for a few years now and the battery is definitely on its last legs, especially with the summer heat starting to ramp up. I've noticed the cranking getting slower and slower, and I had to jump it twice last week which was a clear sign that I need to sort this out before I get stuck somewhere inconvenient. I've been looking into what size battery I need and it seems like a 70ah is the right spec for my model, but I'm a bit overwhelmed by all the different brands and options out there. Some people swear by Amaron, others say Bosch is better, and I've even heard good things about some local brands. I came across some useful info online where I could visit this page to learn more about 70ah battery options in Dubai, but I'm still not sure what I should actually look for. Is there a specific type that handles the heat better? I've heard AGM batteries are supposed to be more durable but they're also more expensive, and I'm not sure if it's worth the extra cost for a car that doesn't have start-stop technology. Also, what's the deal with the warranty on these things? I don't want to end up with a battery that dies after 12 months and then have to fight to get a replacement. Any advice from people who've replaced their Pajero battery recently would be really helpful, especially if you've had good or bad experiences with specific brands. I just want something reliable that won't leave me stranded when I'm out in the desert or stuck in traffic.