If you're investing in the product because you believe it will grow in value i the upcoming years, the only thing i'd use technical analysis is finding a good entry-point. If you're truly confident that token XYZ will 100x in the coming years, i don't even see searching entry-point that necessary.

When planning in going to long term investments i personally look for moving averages, 50, 100 and 200MA's are great way to verify that the direction of the price is going to the preferred one. No need to start nitpicking about the low timeframe RSI's etc. when looking for long term investments. If the fundamentals look solid to you, go for it.