Several folks in Brooklyn NY have started a unique and apparently very effective way to donate to the Ukrainian people – Direct Help for Ukraine – has put a a wish list on Amazon. Those wishing to support Ukraine can visit and donate money to purchase items on the wish list.
Additionally, there is a Reddit that has a list of reliable sources for information about developments there.
The introductions to those information sources requests that information related to Ukrainian forces, locations, actions &etc., not be broadcast publicly, while at the same time requesting that any information regarding Russian troop locations and actions be reported promptly and broadcast widely.