Why do you think the moves you suggest are any good?
Before you decide on any candidate moves you should analyze the position, consider how you can improve your position while minimizing counter play.
I would approach the position as follows. Other alternative ways might exist...
Evaluate the position
Looking at the position I notice a number of things:
- the position is closed (so no immediate attacks on the king possible either side)
- It is very difficult for black to open the position without sacrificing at least a pawn. White on the other hand has several options to open the position with g4, c3, b4....
- White's pieces are much more active.
- White's pieces are not bound to protect anything (Rb7 has to protect Ne7 and Qd5 is protecting the pawn on c5).
- White has no weak pawns, while black has a doubled c pawn (c5 is easy to attack and particularly weak) and an isolated pawn on the a file.
- white has outposts for the knights on c4, d6, g5. Black has outposts on d5, c3, e3.
- white has two knights (often better in closed positions) while black has two bishops (often better in open positions)
Based on the analysis you should come up with ideas of how to approach the position. Generally you want to open the position to some extent as you are unlikely to win with 8 pawns on the board. You are not going to win either by just doing moves that look natural or superficially "good" like Re1 or Ba5 (what do you want to achieve?)
Think of a number of different plans and how realistic they are. Also consider your opponent's option. In this case, only white decides where to open the position and you should make sure that such opening of the position is to your advantage as black can basically just sit and wait.
Opening closed positions by pawn breaks on the flanks is a standard theme that any semi-advanced player knows.
A few possible ideas for a plan together with a rough evaluation. No concrete moves yet.:
- kingside attack/pawn storm involving moves like g4 or h5 at some point
- Seems difficult to get enough pieces to the kingside to assist in the attack and the black king could also escape via f7.
- play against the c5 pawn (in a closed position)
- with Bc1 and Ba3 you attack the pawn twice, but black could defend the pawn with Rb5 (after protecting the Ne7 otherwise). It is not obvious how to proceed with this plan afterwards.
- improve the position of your pieces
- The Rb1 is on a strange square and you might want to reroute the Nf3 to c4. However it is usually better to have a concrete plan in mind before you move your pieces somewhere. Even if c4 is a great square for a knight you might want to figure out that for your plan it is better placed elsewhere.
- open the queenside with moves like b4 or c3 or c4 (after some preparation)
Decide on a plan
Looking deeper into the rough plans judging how risky they are and in how far they can give you an advantage.
- kingside attack: looks very optimistic and I would forget about it quickly in this position.
- direct play against the c5 pawn with Bc1 and Ba3: does not seem to win the pawn anytime soon. Black can defend now with Rb5 and later with Bf8. The Ba3 and Na4 might be misplaced there if you cannot get anywhere with this plan. So I'd forget about this idea either.
- improve the position of pieces. As mentioned, particularly in closed positions you want to have the pieces not on some random good square but often where the action is, i.e. where the position is going to be opened. So this idea should be seen in combination with any opening ideas.
- opening the position on the queenside.
- This looks like a very good idea since, once you open the position here, the doubled c pawn is much easier to attack and also it is easy to get white pieces to the queenside.
- Need to decide between opening with c3/c4 or b4....
Deciding between opening the position with b4 or c4/c3.
b4 gives black play on the open b file or even the option for counter play with c4. Also the Queen might enter in some lines via a2.
c3/c4 opens the c file for white which is good, but potentially leaves white with a weak d pawn.
Which one to pick depends a bit on your experience with such positions. To me the opening with c3, c4 seems much safer giving black less counterplay and you have immediately targets with the weak black pawns on the c file.
Deciding on concrete moves
Once we've decided on a plan (opening the position with c3 or c4), it is time to settle on a move. An immediate c4 or c3 is probably premature as your pieces are not ideally placed.
How can we prepare the opening of the position so that we avoid any counterplay? Where should the pieces go?
- rooks on c1 (to have immediate pressure on the c pawns) and d1 (to protect d3 and later perhaps support a push to d4) seems very obvious
- queen: might want to transfer via f2 to the center/queenside
- knights and bishop look ok-ish where they are
So, I would improve the position with Rbc1, Rfd1, perhaps Qf2 and then play c3 or c4. Whether you first play Rbc1 or Rfd1 should not matter much.
Note that there are at least two tactical ideas that help you in opening the position with c4:
- If the queen move somewhere after c4, the pawn on c5 is not protected and can be captured.
- After exchanging the black d pawn for the white c pawn, the white pawn on d3 is not really hanging because Nxc5 forks the queen and the rook.
So in summary I'd go with Rbc1 now and later open the position with c3 or c4.