My favorite altcoin for now are SOL and TON, because
1. have a good and popular project (blockchain)
2. prices are still cheap and have the potential to increase very high
therefore I was very interested and made SOL and TON my favorite altcoin.
Solana is now a days everyone's favourite coins because of its achievements and if this growth remains continue till halving then I think that I will become most favorable altcoin in all crypto industry. The main reason behind its success is that its transaction fees is lower and the price is going to skyrocket.
Those who have bought the Solana tokens at cheap price are lucky and I just think that current value is also good for investment because if we sell it at 200$ and above it then we can get maximum profit. Crypto altcoins are of great interest these days because the success rate of altcoin is greater but remember that don't be in Fomo and don't invest large amount in altcoin as they are insecure.