The best strategy to become a hodler is to do your own research and find what you consider to be a good project. Ditch the fomo and hype trains.
I got into a new altcoin that offers anonymous transactions because my research showed it has a lot good features and is led by the PIVX founder. Usually, projects created by experienced blockchain entrepreneurs have done well. For example, same guy made STEEM, EOS, and BITSHARES. Given that PIVX did really well, I expect its founder can deliver the same kind of results on his new project. VEIL is still under hardcore development phase but the wallet and blockchain are already working.