Electronic keys and camera system for multi fam

[J Pavao]

Hey Bigger Pockets,

I'm looking for recommendations on tech for the entryway to my second and third floor apartments. I own a 3 family in a tough city (Fall River ma). It's a great neighborhood, but I had a break in a couple of years ago. I'm currently using deadbolts and Arlo battery charged cameras. I'm looking to upgrade without breaking the bank. I'm going to have new doors put in. Curious what you guys use for the main entrance staircase entry. Electronic key pads? Should I stick with Arlo and try their solar chargers? Is there a good brand worth getting wired in? I do not live there so it being streamed to my phone is what I need. This is a general access entryway: guests, pizza delivery people, and tenants will be using this. It's only a three family so I'm not looking to go too crazy with anything expensive to buzz people on or anything. Thank you in advance and happy holidays!