is it worth to think about mining here:
altcoins are also fine
in case of a power flatrate,
no costs here at all
several computer available,
but not made for this. just easy systems for working, bad gpu
but theoretically they coul mine all night and weekends
e.g. one of it is
Hewlett Packard Elite 8200 USDT CMI Intel 2100 Core i3 2x3100 MHz, Intel HD Graphics 2000 Shared Memory, 4096 MB DDR3, 250 GB
best from Berlin
I don't think there is anything you can do with these machines... Mining Bitcoin on such a laptop will result in less than a dollar a year in BTC, while putting serious stress on your device, shortening it's lifetime.
Mining altcoins might be possible if you manage to find a profitable cpu-only altcoin. Mining with an onboard intel graphics card is allmost impossible.
All in all, i don't think it'll ever be worth your time, even if you find a cpu minable coin.