Based on what you've already observed, there's a very important pattern:

JEE/SSC = huge search volume, but dominated by coaching giants (PW, Testbook, Embibe, BYJU'S, Unacademy, Adda247, etc.)
NISM, JAIIB, CAIIB, IRDAI = lower search volume but much weaker competition, so you ranked and got traffic.

I would continue following the "medium volume + low competition" strategy instead of chasing the biggest keywords.

What works best in 2026

Google increasingly ranks pages that answer very specific search intent.

Instead of

Physics Quiz

make

Newton's Laws MCQ with Answers

Semiconductor Physics Quiz

Those pages have much higher ranking potential.

Tier 1 (Highest ROI)

These have a large audience and thousands of searchable topics.

1. Computer Science / Programming ⭐⭐⭐⭐⭐

This is probably the biggest evergreen opportunity.

Topics

PHP Quiz
Java Quiz
Python Quiz
JavaScript Quiz
SQL Quiz
HTML Quiz
CSS Quiz
C Programming Quiz
C++ Quiz
React Quiz
Laravel Quiz
Git Quiz
Linux Quiz
Networking Quiz

Then break them down.

Example PHP

Variables Quiz
Arrays Quiz
Loops Quiz
Functions Quiz
OOP Quiz
Sessions Quiz
Cookies Quiz
File Handling Quiz
Exception Handling Quiz

Each page = SEO page.

2. Banking ⭐⭐⭐⭐⭐

You're already successful here.

Expand.

Topics

Banking Awareness
RBI
Basel Norms
Priority Sector Lending
NEFT
RTGS
UPI
NPCI
FEMA
KYC
AML
Digital Banking
Financial Inclusion

Every one can become

30 MCQs

3. Insurance ⭐⭐⭐⭐⭐

Huge opportunity.

Topics

Fire Insurance
Marine Insurance
Motor Insurance
Health Insurance
Life Insurance
Underwriting
Reinsurance
Risk Management
Principles of Insurance
Insurance Act

4. Finance ⭐⭐⭐⭐⭐

Works for

NISM
CAIIB
MBA
BCom
Interviews

Topics

Mutual Funds
Bonds
Equity
IPO
Derivatives
Options
Futures
Capital Market
Money Market
Portfolio Management
Financial Ratios

Tier 2

Physics

Don't make

Physics Quiz

Make

Units and Dimensions MCQ
Kinematics MCQ
Laws of Motion MCQ
Work Energy Power MCQ
Gravitation MCQ
Rotational Motion MCQ
SHM MCQ
Waves MCQ
Thermodynamics MCQ
Electrostatics MCQ
Current Electricity MCQ
Magnetism MCQ
Ray Optics MCQ
Wave Optics MCQ
Modern Physics MCQ
Semiconductor MCQ

Chemistry

Atomic Structure
Periodic Table
Chemical Bonding
Thermodynamics
Equilibrium
Electrochemistry
Organic Chemistry Basics
Alcohol Phenol Ether
Biomolecules
Coordination Compounds

Biology

Cell
Genetics
Evolution
Human Physiology
Plant Physiology
Ecology
Biotechnology
Human Diseases

Tier 3

Aptitude

Huge search volume.

Topics

Percentage
Profit Loss
SI CI
Time Work
Time Distance
Pipes
Partnership
Ratio
Average
Number System
Probability
Permutation Combination
Data Interpretation

English

Synonyms
Antonyms
Idioms
One Word
Active Passive
Direct Indirect
Tenses
Preposition
Articles
Error Detection
Cloze Test

Reasoning

Blood Relation
Seating Arrangement
Coding Decoding
Puzzle
Direction Sense
Syllogism
Analogy
Ranking

Tier 4 (Very Good SEO)

These have surprisingly good search demand.

Excel

VLOOKUP Quiz
XLOOKUP Quiz
Pivot Table Quiz
Excel Formula Quiz

AI

ChatGPT Quiz
Prompt Engineering Quiz
AI Fundamentals Quiz
Machine Learning Quiz

Cyber Security

Ethical Hacking Quiz
Network Security Quiz
Cryptography Quiz
Cyber Laws Quiz

Digital Marketing

SEO Quiz
Google Ads Quiz
Facebook Ads Quiz
Email Marketing Quiz

Government Exams

Instead of

SSC Quiz

Make

Indian Polity MCQ
Indian History MCQ
Geography MCQ
Economy MCQ
Constitution MCQ
Environment MCQ
Science MCQ

These work for

SSC
UPSC
Railway
State PSC
Police
Defence

High-value Long-tail Keywords

These are easier to rank for than broad terms:

PHP Arrays MCQ
SQL Joins Quiz
Java Exception Handling Quiz
Mutual Fund Quiz
Basel III Quiz
KYC Quiz
UPI Quiz
Insurance Principles Quiz
RBI Functions MCQ
Current Electricity MCQ
Thermodynamics MCQ
Percentage MCQ
Blood Relation Quiz
Excel Formula Quiz
ChatGPT Quiz

SEO Structure I'd Recommend

Rather than only creating standalone quiz pages, organize them into topic hubs:

Programming
 ├── PHP
 │    ├── Variables Quiz
 │    ├── Arrays Quiz
 │    ├── Loops Quiz
 │    ├── Functions Quiz
 │    ├── OOP Quiz
 │    └── Strings Quiz
 ├── Python
 ├── Java
 └── SQL

Physics
 ├── Mechanics
 ├── Thermodynamics
 ├── Electricity
 ├── Magnetism
 ├── Optics
 └── Modern Physics

Banking
 ├── RBI
 ├── KYC
 ├── Basel
 ├── Priority Sector
 ├── UPI
 └── NPCI

This topical clustering helps search engines understand your site's expertise and improves internal linking.

Where I'd invest the next 12 months

If I were prioritizing based on a balance of search demand, competition, and evergreen value, I'd rank the categories like this:

Programming & Computer Science (PHP, Python, SQL, Java, Linux, Git)
Banking & Finance (RBI, UPI, KYC, Basel, Mutual Funds)
Insurance (Life, Health, Motor, Underwriting, Risk)
Aptitude (Percentages, Time & Work, Probability, DI)
Government exam subjects (Polity, Economy, Geography, History)
Physics, Chemistry, Biology (topic-wise, not subject-wide)
English & Reasoning
Excel, AI, Cybersecurity, Digital Marketing

Given your success with NISM, JAIIB, CAIIB, and insurance exams, I would not abandon those niches. Instead, build comprehensive topic clusters around them while adding adjacent evergreen domains like programming and aptitude. That combination gives you a mix of low-competition wins and long-term traffic growth.