Bull Market Phase 1: BTC drives up itself
Bull Market Phase 2: Public Chains drive up
Bull Market Phase 3: Altcoins drive up
We should currently be in the second phase, with XRP, ADA, XLM, and DOT all skyrocketing. It's a good idea to buy some public chains that haven't surged much; they will definitely rise. For example, SEI, APT, TIA, FTM, FLOW, MATIC, etc.