Hi,
My distributor has more than 9700 different mosfets to sell.
They are all different somehow. A lot of them will be for "basic FET circuits".
I recommend to decide what voltage you want to use it for, current, package, R_ds_on, N-Ch or P-Ch, V_GS_th.
Then there will be still 500 different Fets remaining. --> choose one that is good available and cheap.
*****
Simulation: There are free tools. I´m sure you already did a search here in the forum and a global internet search about free simulation tools.
Klaus