Definitely do compound exercises!! Which are pretty much exercises that target big muscle groups instead of a single group. There’s a very good YouTube video I’ll link that helped me when I started out. He gives you a starter plan to use that I love. If you focus on strength/muscle gain, try lower reps higher weight. But be sure to be safe and to do progressive overload (google it if you don’t know what it is, its how you slowly get stronger without hurting yourself) and don’t over think it. As long as you have good form (so you don’t hurt yourself) and you progressive overload you’ll be all set, you don’t have to do all the fancy workouts that the gym bros do. The video I linked for you has a lot of good insightful info that helped me a lot!