Congratulations. I'm sure you wont regret it.
With regards to insurance, don't disregard trying Lexus Motor Insurance. Despite some owners on here being quoted quite astronomical figures by them, I personally have found them to be quite competitive (both on my previous 2018 NX and my current 2022 model). They offer repairs by Lexus approved body-shops using genuine Lexus parts.
Also don't forget that the true value of an insurance company, regardless of cost or other factors, only comes to light when you need to make a claim.