verilog tutorial for beginners getting started

1 - How to Write a Simple Code in Verilog : Logic Design

Asynchronous Counters (Ripple Counters) Explained | Binary Up/Down Ripple Counters

Design of Asynchronous Counters

System Verilog: Counter circuit

(Sponsored) FPGA Design Tutorial (Verilog, Simulation, Implementation) - Phil's Lab #109

Verilog Coding Made Simple: 2:1 MUX with Case Statement