The "best way" is to earn it not to buy it. https://darthcoin.substack.com/p/from-where-can-i-get-some-bitcoins

The best way to get BTC after earn it is to buy it P2P.

If you don't see an offer that match your paying method, just create the offer yourself. Robosats, LNp2pBot, Bisq and HodlHodl.

If the first ideas don't work for you, try buying from an ATM.

Azteco is the one of the best ways to buy Bitcoin. No registration is required.

Go to HODL HODL

Peach 🍑

Robosats

Strike is nice if not in NY