I know you would like to stay at a 45mm min, but Bontrager GR1 Team issue Gravel Tire in 40mm is a nice tire. Tubeless, rides on the road nicely, handles the paths well. Good all around tire.
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Brian | 2023 Trek Domane SLR 7 AXS | 2023 Trek CheckPoint SL 7 AXS | 2016 Trek Emonda ALR | 2022 Trek FX Sport 5
you should learn to embrace change, and mock it's failings every step of the way.