Hello,
I'd encourage you to join a group on Facebook, called "Irish Solar Owners Group".
While you won't find direct comparison tables for various manufacturers on that group, you will get a lot of information from other buyers, solar power enthusiasts, people in the trade etc.
It's proven to be a super (free and independent) resource for both myself and many others here.
We have a Velux window, so had to factor that into our own decision making, but it wasn't anything that couldn't be easily dealt with (as a starting point, keep in mind that panels can run either horizontal or vertical).
Panels are also the cheapest part of the investment, so ensure you install as many as you can, when getting the job done. Generally, the more efficient panels are larger, but with ever improving technology, that may not always be the case, anymore.
Also, if you've a chimney, or part of your roof is shaded for periods of the day, you may need individual optimiser fitted to some panels, and while they come at an additional cost, they are often worth it.
I'm no expert on manufacturers, but one important thing to keep in mind is this....while Huawei are a good brand, you are restricted to only buying Huawei components into the future, if you get their invertor. That put me off them tbh, but it's a personal decision.