Synthetic long and short positions are considered riskier than spreads, because of their easy leverage and the resulting big potential losses - while spreads have a limited downside. Synthetic options positions are "stock replacement strategies" that have less upfront cash/margin footprints than owning the stock.
As a stock replacement strategy another approach is to score a few long term lottery tickets that move deep in the money - those will follow the stock most of the time, but use up only a fraction of the initial investment. The downside is the significant premium paid relative to stock: a 2022/01 LEAP at-the-money contract is trading at a $220 premium at the moment - this is the amount of gains you give up over 2 years time period should the stock stay flat at the current $800, and you'll only start making at $1,000 and above.
Another approach is to go with deep out of the money options and write it off as an investment loss straight away - for example the 2022/01 LEAPS at $1,880's are going for around $55 right now - which is still elevated and assumes big, over 140% appreciation in the TSLA stock price in the next two years to reach the $1,935 break-even price, and IV of these is still well above the historic average of 50% at 53%.
The $1,500-$1,880 2022's are probably the closest to any realistically priced long term shots at the moment, but of course there's a significant risk of a 100% loss, plus there will be an unnerving draw-down of the position should there be a significant dip. No more inexpensive moonshots available anymore.
A middle-of-the-road approach would be $1,250 2-year LEAPs for around $110 which assume appreciation to $1,360 as a break-even point - this is a 35% annual upside which is more or less consistent with a bull thesis and allows the harvesting of any explosive appreciation.
There's significant downside risks compared to just using the cash to buy stock, and the leverage isn't all that great, a few days after a big run-up is usually not a good moment to buy bullish options.
Not advice.