This is more of a practical question than an NEC one. I've dealt with aluminum wiring in a prior home and know how much of a pain it is to use CO/AL bridges and Noalox to meet code.
In my case I need to run a long 100 ft 240V 30A circuit. 10AWG CU is crazy expensive compared to a couple years ago. 8AWG AL is reasonable, about the price of 10AWG before the price hikes. In a home with all-copper wiring built in the 2000's, would you recommend adding a circuit with AL? One of my concerns is if/when I sell the house, the inspector may raise a flag on the AL circuit. Any other concerns I should be thinking about?
Another option is to use UF cable which hasn't spiked in price. It sounds unbelievable, but check the big box stores and you'll be surprised. I've read that UF cable is hard to work with due to conductors being rigidly encased.