I look for a new router and I found this one https://www.asus.com/Networking/RT-AX92U/ but I do not know how is Openwrt support for this router. Is something similiar with full openwr support?
My wishes are USB 3 for file sharing and power for next decade
At the moment, OpenWrt doesn't support any 802.11ax device, yet. ipq807x is probably closest to getting supported (but won't happen over night either).
There are a couple of potential options, depending on your requirements (in particular, WAN speed, additional services (e.g. VPN), rough budget and location (as pricing and availability differs a lot between North America and Europe) etc.).
Without knowing any of your needs in particular, ipq806x, ipq40xx or mt7621 based devices come to mind; mvebu or x86_64 might also be a good match.