I wouls suggest u to get the one that use green gas instead if the co2 type if u never used a gas bb, or you won’t be doing much game or play with it.
Reason being, while the co2 is more consistent, u have to finish the co2 once you stop using it, you cannot leave un-finished co2 cartrige in the pistol and leave it there. Could cause issue internally.
The green gas direct mag fill up type doesn’t have this issue, you can leave some gas inside.
But the performance will slowly decrease due to preassure drop.
apart from that i think it mostly depends on what type of pistol you like.
for example i know a few friend’s will be getting glock types, mostly cos they work in security and glock is pretty much the pistol they got used to.
for me it’s the 1911 style, i am a big colt fanboi