How to improve SEO without guest blogging
Can someone help me how can I rank my website without doing guest blogging? I don't have money to do guest blogging.
There are plenty of opportunities. Guest blogging is just one of them.
As we have no idea which niche you're in, general rule of thumb is - go find authority websites in your niche and try to get links from there. The best way to do that is to cooperate with site owners. Spamming will not help (your links will be deleted eventually so it's not worth the time). Make sure your links last, so you can increasingly progress your backlink profile.
If you don't have budget for that / you don't have anything you can offer to site owners, participating in discussions is still good way to gain some links. Just make sure you stay on-topic, help other members, bring valuable information... Link here and there (like one link in ten posts) is acceptable, as long as you can bring value to other users on the board.