I started running with an app called Runna. It has a beginner training plan you can customize to your liking, such as how many times a week you want to run and on what days.
It will then guide you on each run with how long, how fast, and how far you should run and gradually build you towards 5k over a course of 8 weeks.
I loved it that it gave me pacing to not overdo it at the beginning but also pushed me for more when I needed it.
I always put it in my earphones just by itself and it would give me instructions such as “next 5 minutes run in conversational pace” and then time it and give me next instruction.
Also each run gives you time estimate and distance estimate so you can choose your route accordingly.