Use related link building practice. Now Google is smarter enough get links from anywhere you want but must be related to your Niche/Topic.

I have used my own research to write human-written article, optimize SEO properly, and apply all technical SEO strategies.

Greetings everyone,

I am running my blog, which is tool-based. In the beginning, it was working properly, but since 2 months, I have been facing post-indexing issues.

I have tried many practices and learned from different platforms, but the problem still exists. My posts are totally SEO optimized.

Did anyone face this issue before, or does anybody know what the best practice is to figure it out and fix it?

I think these traffic is coming from spammy bot sites,If you figure it out then block if by robots.txt

IMO, if you cover your focused service and cover all the keywords related to with that Niche, and create more topics in the same manner, that will show to the Google topical authority, make social signals create GMP, so you will get what you want.

You should create social links for social signals, also post your same articles on publishing websites like Medium with the same focus keyword, and add your post link in the article for the landing page. this strategy will show search engine signals that you are an authority. You will get impressions and clicks.