For those (
@mentos) doing more short term stuff:
Consider investing through a corporation (not an LLC). Pay 21% corporate tax rate on all gains (until Biden changes that). Keep the money within the walls of the corporation and use it to reinvest/buy rental property/buy rental cars (look at Turo as an example). You can accumulate assets through the corporation, and unless they money leaves the corporation you don't pay dividend or gains tax on it (otherwise you'll get double taxed and actually end up paying more in taxes).
Source - I have a great accountant. If you happen to have a 1099 side gig you can roll that in there - if you hang out at the physician finance forums a lot of them use S-corps instead of LLCs if they're above a certain income. Admittedly I have a very, very basic understanding of all this tax stuff so I rely heavily on my accountant and tax attorney.