Where should i invest?

BTC is still good, ETH is a different value proposition being a DeFi platform so has more real-world uses than BTC.
Personally I recommend investing in both BTC and ETH for a decent portion of your portfolio then allocating some play money for the wide array of alt's but dont be surprised if you either get rich or go broke with alts.

When will video cards fall in price? The prices are simply cosmic ...

Waffleswap is a good cyrptocurrency to invest in quickly.

It is risky no matter what coin you invest, if you want good profit in quick time.
To earn good profit in short time, you need good knowledge and experience in trading.
Or just stick to the basic "buy low, sell high" rule.

There is a chance that new and cheap coin's price will goes up 100x 200x times in short time. But nobody really know which coin has that potential.
It is the only way to get rich in short time.

BTC, ETH are reliable cryptos but you are slightly late to the party, so you won't get rich in short time just by investing in them.
If you are aiming for a long term, they are good investments IMO.

Cardano (ADA) its gonna rocket

If u planned to invest in bitcoin wait, btc might reach $28000 and wait for big whales to pump again.(not an investment advice!)