hello - would like your help for a new bike

[newbiker]

Hello! I just signed up and drafted a long post and was clicking submit and then all the windows closed and lost all my work. This never happened to me. Well, here it goes again.

Looking to but a used bike, and I feel lost and like I'm swimming in a sea of bikes as options. I would very much appreciate your expertise, knowledge, experience with bikes.
I am 5'3" proper proportions (with a little bit longer and slender arms, I think it's all the money bars I played on when I was young lol) But looking for the best value/investment for what I pay. I wouldn't mind having 2 different bikes. I'm okay with 1 as a more road bike or hybrid (I don't if these are okay for concrete sidewalks with sand, it's by the beach), and another one as a hybrid or mountain bike (I don't know if tires of mountain bike tires go bad if ridden on concrete with sand more often then mountains).

I posted all the names of them before everything just closed and disappeared. So going to try attaching photos of them instead and hopefully the experts/you'll be able to identify them? If you need more details more than happy to.

All bikes are pretty much in great condition.

Trek larger youth bike white, pink, purple is - $50
Trek FX7.1 all black bike in photo for - $125 (not the one with disc brakes)
Trek bike 7200 17.5” frame (blue one) - $120
Trek Precaliber 20in wheel 7-speed HardTail Mountain Bike- 2022 - $125

Schwinn Link (in photo)
Schwinn (white pink purple one in photo) for larger youth size $50

Fuji Absolute 2014 - $150
Fuji 2011 Nevada 1.0 $200 but might get for - $100-$125

Nishiki Roadbike (blue one) - $155

Norco Malaht Neoin Yellow/Black 21-SPEED Front Suspension Cruiser Bike - $100

Specialized Hardrock -$140
Specialized Rock Hopper (black one) is for - $40
Specialized white and green one in photo (29" tires but 17") - $100
Specialized (all grey one in photo)

Cannondale 24
Cannondale (the white and red one) for petite size

GT Fitness series All Terra - 26" - $200 (but might be negotiable)

I think I've attached other bikes too as photos that might not be above.
Sorry this is my first forum post! I may not quite know the ropes of this. :0)

[newbiker]

So attempted to narrow it down to

Specialized white and green one in photo (29" tires but 17") Myka V 650B - $100

Cannondale (the white and red one) for petite size I think its a Quick 3 2016 (?) - $100
(I notice this one doesn't have front suspension, does it make that much of a difference)

But i any listed above are a really high value with good performance, I'm looking for the high value and high resale cost. I honestly I don't know how long my biking hobby will last with a busy schedule so high resale value is considered. I guess I'm looking for the bike where someone says I have to get because it's a great deal I shouldn't pass up. I will of course try the bike for fit and comfort.