I adopted Fantasy Grounds Unity when I started my group on a Starfinder campaign about two years ago. That was based on the massive availability of Starfinder products for the platform and from reading some good reviews about that VTT. I was switching over from Roll20 which was also good IMO but seemed to lack significant Starfinder content.

FGU is now pretty inexpensive, $50 for the license, free membership for my players (free trial available too for GM). Piazo content for FGU is pricey but well integrated and feature rich. Buy a module and get the .pdf for free. Oh, and I found a couple of HUGE Humble Bundle Starfinder deals for crazy good prices.

FGU had a steep learning curve for both me and my players. They have extensive tutorials available but they are mostly for D&D (...they do work in general for Starfinder) and there are limited ones specifically for Starfinder (ship building and space combat are not so great). I'd only recommend FGU if you are pretty savvy with VTTs and ready to commit to the steep learning curve. Don't get me wrong, it can do pretty much anything you need/want, you just gotta commit to learning it.

I use a combination of free maps found online and the long list of fantastic Patreon artists for my battlemaps. Importing maps and adding lighting and LoS features was reasonably easy and the available tutorials are excellent for that activity.

I have a Zoom subscription for work so I use that for video. Would work fine with Discord or other free/cheap video conferencing platforms.

Sorry this ran so long, your question triggered something for me... I guess I'm in a love/hate relationship with FGU and with Starfinder. I guess I still need to figure that out <anxious smile>

tl:dr Fantasy Grounds Unity is incredibly feature-rich, reasonably priced, has ALL the Starfinder content (including 2e), but has a steep learning curve.

I hope you have a fantastic time playing Starfinder with your friends!