I don’t know of any master list. But as mentioned in the other comments, AllTrails is pretty good. Also, check individual towns’ websites for recreation areas. And your physical condition will play a big part in where you should start.

Also, and again this has already been said, while spring weather can be nice, the ground is often muddy and slipper from snow melt. Right now is a great time to hike—dry ground, and no bugs.

One recommendation is to get yourself some hiking boots, but use them as your daily shoes for a week or two before going on a hike. So they’ll be broken in, but also so you’ll know if you like them.

Whatever town you live in, there are likely some nature trails that serious mountaineers would laugh at, but don’t let that keep you from hiking on them to get yourself accustomed. Start small.

There are many lists of equipment you should carry with you. A backpack with a little extra clothing, enough water/snacks to tide you over if you get lost, and a good flashlight in case you end up out after dark.

While you should always try to take care of yourself, and count on others to rescue you only as a last resort, do make sure your phone is fully charged and bring it with you.