175 FC-TY301 crank set upgrade
On a Shimano Tourney equipped bike I would not bother upgrading much. You could put an Altus, Acera or Alvio crank on but there is no point going beyond that.

The TY301 fits on a cartridge square taper also bottom bracket. Altus, Acera and Alvio ranges all have triple crank that fit on such a BB. The trick is that different cranks need a different length BB axle to get the right chainline. What you'll need to do is match the new crank to your current BB - OR - get a new BB with the new crank.

Shimano makes this really easy by publishing all the compatibility information. The FC-TY301 page lists the BB's it is compatible with, you can look up other cranks specs here https://productinfo.shimano.com/#/lc.