Of course every gun is going to be map and situation dependent however, this will serve as a general guide to get you started.
Number 5 the Mosin-nagant
The mosin is a powerful bolt action rifle. Early in the wipe you will be able to down any PMCs or scavs in just a few shots. Its recommended to try and keep your engagements at medium to long range when rocking the mosin. You can also upgrade the mosin by adding a scope, shortening the barrel or adding different grips. If you're going to use the mosin after the start of the wipe then I highly recommend that you add a scope as soon as possible. This will give you a huge advantage over other PMCs at long range. You don't get to kill players in a few shots without some draw backs. The slow rate of fire will put you at a huge disadvantage when inside of a building. If you end up in a close combat encounter then you really need to aim for the head and make your shots count. Reloading the mosin takes forever. I highly recommend going into raid with a side arm if you decide to use any bolt action rifle. Which is why the mosin is only taking our number 5 spot.
You can buy the mosin from level 1 Prapr for just 35,000 rubles.
The kedr offers an economical yet versatile platform for beginner players. The kedr is a rapid fire sub machine gun is deadly in close range. This weapon platform is highly customizable. It's very affordable to buy extended mags and red dot sights for this gun. The kedr has almost zero recoil. It's incredibly easy to stay on target when firing this gun. Which is made even easier with the amazing iron sights already on the kedr. It's also amazingly quiet even when stock. No need to worry about some thicc chads coming from across the map to take you out. The kedr is also so cheap that if you get taken out by high level players they almost never take it. I almost always get my kedr's back via insurance. Unfortunately the kedr does come with one major down side. The 9 by 18 ammo that the kedr uses has no armor penetration whatsoever. Which means if you want to kill someone who is wearing decent armor then you need to aim for the unarmored areas. You can aim for a faceshot or take out there legs.
You can buy the kedr from level 1 prapr for just 22,000 rubles.
The sks is the budget king of any early wipe which provides a lot of stopping power for anyone who picks it up. The sks is a highly dependable and versatile rifle. It's hard to think of a situation where you can't use the sks. If you truly have no idea where to start then this gun is for you. This gun has its drawbacks like any other gun out there. Until you upgrade to the OP-sks you'll be stuck using the iron sights which are not the greatest. I recommend removing the rear sign for a better sight picture. This will make it a lot easier to see what you are shooting at.
You can buy the sks from level 1 prapr for just 21,000 rubles.
The UMP is personally my favorite gun in the early game. Im gonna be honest, I was having a terrible wipe last wipe. That was until I started using the ump. This thing is insane at medium and short range. Absolutely devastating whenever you land headshots. .45 still have enough penetration to stop high level players with body shots. On top of this devastating stopping power the ump is incredibly economical. I think the fire rate is perfect fast enough to kill quickly even while missing a few shots but slow enough to control when firing at a distance. If you can't tell I am in love with the ump. There are a few down sides to the ump, ofcourse no gun is perfect but the ump comes close. Obviously, If you need to fight at long range the ump is an smg and isn't going to do you much good. Also you need to get peace keeper to level two before you can buy the ump.
You can buy the ump from level 2 peacekeeper for $300
The adar is a fighting rifle chambered in 556. The adar is good at fighting enemies from all ranges although you may find yourself struggling at extremely long range. Unlike a lot of guns on this list the adar uses magazines. You can reload quickly and not leave yourself vulnerable for a long time. The adar is extremely accurate while. The adar as minimal recoil making it a great choice for anyone who is new to tarkov. Unfortunately if you find yourself facing multiple enemies semi auto will leave you struggling for control of the fight.
You can pick up the adar from level 1 skir for 45,000 rubles