We may be inclined to think about other coins, but in the end, BTC would be the main coin to hodl and watch for.
Simply due to the value and acknowledgment BTC gains now because of the ideas it upholds.
If you are considered other than Bitcoin, you can get a profit from that coin after a certain time after investing. But if you are holding a bitcoin, then you will benefit from that Bitcoin in the future. According to Bitcoin's popularity and acknowledgement, its value is gradually increasing in the future, which is reduced instead of increasing in other coins.
Sometimes looking for another coin to buy and make profit so that it will help you to accumulate more bitcoin is not really a good ideas to me. What of if you end up making loss of course this will bring setback on your bitcoin accumulation. I will say that if you already have the fund just focus on bitcoin and accumulate the little you can accumulate. If you are accumulating consistently either by using DCA method with time you will achieve your target.